51254320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{223}}^1$

素因数の和:279

約数の個数: 120

約数和(自身を含む): 137241216

約数和(自身を除く): 85986896

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 34, 40, 52, 65, 68, 80, 85, 104, 130, 136, 169, 170, 208, 221, 223, 260, 272, 338, 340, 442, 446, 520, 676, 680, 845, 884, 892, 1040, 1105, 1115, 1352, 1360, 1690, 1768, 1784, 2210, 2230, 2704, 2873, 2899, 3380, 3536, 3568, 3791, 4420, 4460, 5746, 5798, 6760, 7582, 8840, 8920, 11492, 11596, 13520, 14365, 14495, 15164, 17680, 17840, 18955, 22984, 23192, 28730, 28990, 30328, 37687, 37910, 45968, 46384, 49283, 57460, 57980, 60656, 75374, 75820, 98566, 114920, 115960, 150748, 151640, 188435, 197132, 229840, 231920, 246415, 301496, 303280, 376870, 394264, 492830, 602992, 640679, 753740, 788528, 985660, 1281358, 1507480, 1971320, 2562716, 3014960, 3203395, 3942640, 5125432, 6406790, 10250864, 12813580, 25627160, 51254320]

約数ペア:

[(1, 51254320), (2, 25627160), (4, 12813580), (5, 10250864), (8, 6406790), (10, 5125432), (13, 3942640), (16, 3203395), (17, 3014960), (20, 2562716), (26, 1971320), (34, 1507480), (40, 1281358), (52, 985660), (65, 788528), (68, 753740), (80, 640679), (85, 602992), (104, 492830), (130, 394264), (136, 376870), (169, 303280), (170, 301496), (208, 246415), (221, 231920), (223, 229840), (260, 197132), (272, 188435), (338, 151640), (340, 150748), (442, 115960), (446, 114920), (520, 98566), (676, 75820), (680, 75374), (845, 60656), (884, 57980), (892, 57460), (1040, 49283), (1105, 46384), (1115, 45968), (1352, 37910), (1360, 37687), (1690, 30328), (1768, 28990), (1784, 28730), (2210, 23192), (2230, 22984), (2704, 18955), (2873, 17840), (2899, 17680), (3380, 15164), (3536, 14495), (3568, 14365), (3791, 13520), (4420, 11596), (4460, 11492), (5746, 8920), (5798, 8840), (6760, 7582)]