78398320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:144

約数の個数: 240

約数和(自身を含む): 249359040

約数和(自身を除く): 170960720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 89, 91, 104, 110, 112, 121, 130, 140, 143, 154, 176, 178, 182, 208, 220, 242, 260, 280, 286, 308, 356, 364, 385, 440, 445, 455, 484, 520, 560, 572, 605, 616, 623, 712, 715, 728, 770, 847, 880, 890, 910, 968, 979, 1001, 1040, 1144, 1157, 1210, 1232, 1246, 1424, 1430, 1456, 1540, 1573, 1694, 1780, 1820, 1936, 1958, 2002, 2288, 2314, 2420, 2492, 2860, 3080, 3115, 3146, 3388, 3560, 3640, 3916, 4004, 4235, 4628, 4840, 4895, 4984, 5005, 5720, 5785, 6160, 6230, 6292, 6776, 6853, 7120, 7280, 7832, 7865, 8008, 8099, 8470, 9256, 9680, 9790, 9968, 10010, 10769, 11011, 11440, 11570, 12460, 12584, 12727, 13552, 13706, 15664, 15730, 16016, 16198, 16940, 18512, 19580, 20020, 21538, 22022, 23140, 24920, 25168, 25454, 27412, 31460, 32396, 33880, 34265, 39160, 40040, 40495, 43076, 44044, 46280, 49840, 50908, 53845, 54824, 55055, 62920, 63635, 64792, 67760, 68530, 75383, 78320, 80080, 80990, 86152, 88088, 89089, 92560, 101816, 107690, 109648, 110110, 125840, 127270, 129584, 137060, 139997, 150766, 161980, 172304, 176176, 178178, 203632, 215380, 220220, 254540, 274120, 279994, 301532, 323960, 356356, 376915, 430760, 440440, 445445, 509080, 548240, 559988, 603064, 647920, 699985, 712712, 753830, 861520, 880880, 890890, 979979, 1018160, 1119976, 1206128, 1399970, 1425424, 1507660, 1781780, 1959958, 2239952, 2799940, 3015320, 3563560, 3919916, 4899895, 5599880, 6030640, 7127120, 7839832, 9799790, 11199760, 15679664, 19599580, 39199160, 78398320]

約数ペア:

[(1, 78398320), (2, 39199160), (4, 19599580), (5, 15679664), (7, 11199760), (8, 9799790), (10, 7839832), (11, 7127120), (13, 6030640), (14, 5599880), (16, 4899895), (20, 3919916), (22, 3563560), (26, 3015320), (28, 2799940), (35, 2239952), (40, 1959958), (44, 1781780), (52, 1507660), (55, 1425424), (56, 1399970), (65, 1206128), (70, 1119976), (77, 1018160), (80, 979979), (88, 890890), (89, 880880), (91, 861520), (104, 753830), (110, 712712), (112, 699985), (121, 647920), (130, 603064), (140, 559988), (143, 548240), (154, 509080), (176, 445445), (178, 440440), (182, 430760), (208, 376915), (220, 356356), (242, 323960), (260, 301532), (280, 279994), (286, 274120), (308, 254540), (356, 220220), (364, 215380), (385, 203632), (440, 178178), (445, 176176), (455, 172304), (484, 161980), (520, 150766), (560, 139997), (572, 137060), (605, 129584), (616, 127270), (623, 125840), (712, 110110), (715, 109648), (728, 107690), (770, 101816), (847, 92560), (880, 89089), (890, 88088), (910, 86152), (968, 80990), (979, 80080), (1001, 78320), (1040, 75383), (1144, 68530), (1157, 67760), (1210, 64792), (1232, 63635), (1246, 62920), (1424, 55055), (1430, 54824), (1456, 53845), (1540, 50908), (1573, 49840), (1694, 46280), (1780, 44044), (1820, 43076), (1936, 40495), (1958, 40040), (2002, 39160), (2288, 34265), (2314, 33880), (2420, 32396), (2492, 31460), (2860, 27412), (3080, 25454), (3115, 25168), (3146, 24920), (3388, 23140), (3560, 22022), (3640, 21538), (3916, 20020), (4004, 19580), (4235, 18512), (4628, 16940), (4840, 16198), (4895, 16016), (4984, 15730), (5005, 15664), (5720, 13706), (5785, 13552), (6160, 12727), (6230, 12584), (6292, 12460), (6776, 11570), (6853, 11440), (7120, 11011), (7280, 10769), (7832, 10010), (7865, 9968), (8008, 9790), (8099, 9680), (8470, 9256)]