131451320

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:123

約数の個数: 256

約数和(自身を含む): 411264000

約数和(自身を除く): 279812680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 49, 52, 55, 56, 65, 67, 70, 77, 88, 91, 98, 104, 110, 130, 134, 140, 143, 154, 182, 196, 220, 245, 260, 268, 280, 286, 308, 335, 343, 364, 385, 392, 440, 455, 469, 490, 520, 536, 539, 572, 616, 637, 670, 686, 715, 728, 737, 770, 871, 910, 938, 980, 1001, 1078, 1144, 1274, 1340, 1372, 1430, 1474, 1540, 1715, 1742, 1820, 1876, 1960, 2002, 2156, 2345, 2548, 2680, 2695, 2744, 2860, 2948, 3080, 3185, 3283, 3430, 3484, 3640, 3685, 3752, 3773, 4004, 4312, 4355, 4459, 4690, 5005, 5096, 5159, 5390, 5720, 5896, 6097, 6370, 6566, 6860, 6968, 7007, 7370, 7546, 8008, 8710, 8918, 9380, 9581, 10010, 10318, 10780, 12194, 12740, 13132, 13720, 14014, 14740, 15092, 16415, 17420, 17836, 18760, 18865, 19162, 20020, 20636, 21560, 22295, 22981, 24388, 25480, 25795, 26264, 28028, 29480, 30184, 30485, 32830, 34840, 35035, 35672, 36113, 37730, 38324, 40040, 41272, 42679, 44590, 45962, 47905, 48776, 49049, 51590, 56056, 60970, 65660, 67067, 70070, 72226, 75460, 76648, 85358, 89180, 91924, 95810, 98098, 103180, 114905, 121940, 131320, 134134, 140140, 144452, 150920, 170716, 178360, 180565, 183848, 191620, 196196, 206360, 213395, 229810, 243880, 245245, 252791, 268268, 280280, 288904, 298753, 335335, 341432, 361130, 383240, 392392, 426790, 459620, 469469, 490490, 505582, 536536, 597506, 670670, 722260, 853580, 919240, 938938, 980980, 1011164, 1195012, 1263955, 1341340, 1444520, 1493765, 1707160, 1877876, 1961960, 2022328, 2347345, 2390024, 2527910, 2682680, 2987530, 3286283, 3755752, 4694690, 5055820, 5975060, 6572566, 9389380, 10111640, 11950120, 13145132, 16431415, 18778760, 26290264, 32862830, 65725660, 131451320]

約数ペア:

[(1, 131451320), (2, 65725660), (4, 32862830), (5, 26290264), (7, 18778760), (8, 16431415), (10, 13145132), (11, 11950120), (13, 10111640), (14, 9389380), (20, 6572566), (22, 5975060), (26, 5055820), (28, 4694690), (35, 3755752), (40, 3286283), (44, 2987530), (49, 2682680), (52, 2527910), (55, 2390024), (56, 2347345), (65, 2022328), (67, 1961960), (70, 1877876), (77, 1707160), (88, 1493765), (91, 1444520), (98, 1341340), (104, 1263955), (110, 1195012), (130, 1011164), (134, 980980), (140, 938938), (143, 919240), (154, 853580), (182, 722260), (196, 670670), (220, 597506), (245, 536536), (260, 505582), (268, 490490), (280, 469469), (286, 459620), (308, 426790), (335, 392392), (343, 383240), (364, 361130), (385, 341432), (392, 335335), (440, 298753), (455, 288904), (469, 280280), (490, 268268), (520, 252791), (536, 245245), (539, 243880), (572, 229810), (616, 213395), (637, 206360), (670, 196196), (686, 191620), (715, 183848), (728, 180565), (737, 178360), (770, 170716), (871, 150920), (910, 144452), (938, 140140), (980, 134134), (1001, 131320), (1078, 121940), (1144, 114905), (1274, 103180), (1340, 98098), (1372, 95810), (1430, 91924), (1474, 89180), (1540, 85358), (1715, 76648), (1742, 75460), (1820, 72226), (1876, 70070), (1960, 67067), (2002, 65660), (2156, 60970), (2345, 56056), (2548, 51590), (2680, 49049), (2695, 48776), (2744, 47905), (2860, 45962), (2948, 44590), (3080, 42679), (3185, 41272), (3283, 40040), (3430, 38324), (3484, 37730), (3640, 36113), (3685, 35672), (3752, 35035), (3773, 34840), (4004, 32830), (4312, 30485), (4355, 30184), (4459, 29480), (4690, 28028), (5005, 26264), (5096, 25795), (5159, 25480), (5390, 24388), (5720, 22981), (5896, 22295), (6097, 21560), (6370, 20636), (6566, 20020), (6860, 19162), (6968, 18865), (7007, 18760), (7370, 17836), (7546, 17420), (8008, 16415), (8710, 15092), (8918, 14740), (9380, 14014), (9581, 13720), (10010, 13132), (10318, 12740), (10780, 12194)]