640159520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1$

素因数の和:624

約数の個数: 288

約数和(自身を含む): 2070484416

約数和(自身を除く): 1430324896

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 32, 35, 40, 44, 49, 52, 55, 56, 65, 70, 77, 80, 88, 91, 98, 104, 110, 112, 130, 140, 143, 154, 160, 176, 182, 196, 208, 220, 224, 245, 260, 280, 286, 308, 352, 364, 385, 392, 416, 440, 455, 490, 520, 539, 560, 571, 572, 616, 637, 715, 728, 770, 784, 880, 910, 980, 1001, 1040, 1078, 1120, 1142, 1144, 1232, 1274, 1430, 1456, 1540, 1568, 1760, 1820, 1960, 2002, 2080, 2156, 2284, 2288, 2464, 2548, 2695, 2855, 2860, 2912, 3080, 3185, 3640, 3920, 3997, 4004, 4312, 4568, 4576, 5005, 5096, 5390, 5710, 5720, 6160, 6281, 6370, 7007, 7280, 7423, 7840, 7994, 8008, 8624, 9136, 10010, 10192, 10780, 11420, 11440, 12320, 12562, 12740, 14014, 14560, 14846, 15988, 16016, 17248, 18272, 19985, 20020, 20384, 21560, 22840, 22880, 25124, 25480, 27979, 28028, 29692, 31405, 31976, 32032, 35035, 37115, 39970, 40040, 43120, 43967, 45680, 50248, 50960, 51961, 55958, 56056, 59384, 62810, 63952, 70070, 74230, 79940, 80080, 81653, 86240, 87934, 91360, 100496, 101920, 103922, 111916, 112112, 118768, 125620, 127904, 139895, 140140, 148460, 159880, 160160, 163306, 175868, 200992, 207844, 219835, 223832, 224224, 237536, 251240, 259805, 279790, 280280, 296920, 307769, 319760, 326612, 351736, 363727, 408265, 415688, 439670, 447664, 502480, 519610, 559580, 560560, 571571, 593840, 615538, 639520, 653224, 703472, 727454, 816530, 831376, 879340, 895328, 1004960, 1039220, 1119160, 1121120, 1143142, 1187680, 1231076, 1306448, 1406944, 1454908, 1538845, 1633060, 1662752, 1758680, 1818635, 2078440, 2238320, 2286284, 2462152, 2612896, 2857855, 2909816, 3077690, 3266120, 3517360, 3637270, 4000997, 4156880, 4476640, 4572568, 4924304, 5715710, 5819632, 6155380, 6532240, 7034720, 7274540, 8001994, 8313760, 9145136, 9848608, 11431420, 11639264, 12310760, 13064480, 14549080, 16003988, 18290272, 20004985, 22862840, 24621520, 29098160, 32007976, 40009970, 45725680, 49243040, 58196320, 64015952, 80019940, 91451360, 128031904, 160039880, 320079760, 640159520]

約数ペア:

[(1, 640159520), (2, 320079760), (4, 160039880), (5, 128031904), (7, 91451360), (8, 80019940), (10, 64015952), (11, 58196320), (13, 49243040), (14, 45725680), (16, 40009970), (20, 32007976), (22, 29098160), (26, 24621520), (28, 22862840), (32, 20004985), (35, 18290272), (40, 16003988), (44, 14549080), (49, 13064480), (52, 12310760), (55, 11639264), (56, 11431420), (65, 9848608), (70, 9145136), (77, 8313760), (80, 8001994), (88, 7274540), (91, 7034720), (98, 6532240), (104, 6155380), (110, 5819632), (112, 5715710), (130, 4924304), (140, 4572568), (143, 4476640), (154, 4156880), (160, 4000997), (176, 3637270), (182, 3517360), (196, 3266120), (208, 3077690), (220, 2909816), (224, 2857855), (245, 2612896), (260, 2462152), (280, 2286284), (286, 2238320), (308, 2078440), (352, 1818635), (364, 1758680), (385, 1662752), (392, 1633060), (416, 1538845), (440, 1454908), (455, 1406944), (490, 1306448), (520, 1231076), (539, 1187680), (560, 1143142), (571, 1121120), (572, 1119160), (616, 1039220), (637, 1004960), (715, 895328), (728, 879340), (770, 831376), (784, 816530), (880, 727454), (910, 703472), (980, 653224), (1001, 639520), (1040, 615538), (1078, 593840), (1120, 571571), (1142, 560560), (1144, 559580), (1232, 519610), (1274, 502480), (1430, 447664), (1456, 439670), (1540, 415688), (1568, 408265), (1760, 363727), (1820, 351736), (1960, 326612), (2002, 319760), (2080, 307769), (2156, 296920), (2284, 280280), (2288, 279790), (2464, 259805), (2548, 251240), (2695, 237536), (2855, 224224), (2860, 223832), (2912, 219835), (3080, 207844), (3185, 200992), (3640, 175868), (3920, 163306), (3997, 160160), (4004, 159880), (4312, 148460), (4568, 140140), (4576, 139895), (5005, 127904), (5096, 125620), (5390, 118768), (5710, 112112), (5720, 111916), (6160, 103922), (6281, 101920), (6370, 100496), (7007, 91360), (7280, 87934), (7423, 86240), (7840, 81653), (7994, 80080), (8008, 79940), (8624, 74230), (9136, 70070), (10010, 63952), (10192, 62810), (10780, 59384), (11420, 56056), (11440, 55958), (12320, 51961), (12562, 50960), (12740, 50248), (14014, 45680), (14560, 43967), (14846, 43120), (15988, 40040), (16016, 39970), (17248, 37115), (18272, 35035), (19985, 32032), (20020, 31976), (20384, 31405), (21560, 29692), (22840, 28028), (22880, 27979), (25124, 25480)]