12998960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1$

素因数の和:486

約数の個数: 80

約数和(自身を含む): 33747840

約数和(自身を除く): 20748880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 40, 52, 58, 65, 80, 104, 116, 130, 145, 208, 232, 260, 290, 377, 431, 464, 520, 580, 754, 862, 1040, 1160, 1508, 1724, 1885, 2155, 2320, 3016, 3448, 3770, 4310, 5603, 6032, 6896, 7540, 8620, 11206, 12499, 15080, 17240, 22412, 24998, 28015, 30160, 34480, 44824, 49996, 56030, 62495, 89648, 99992, 112060, 124990, 162487, 199984, 224120, 249980, 324974, 448240, 499960, 649948, 812435, 999920, 1299896, 1624870, 2599792, 3249740, 6499480, 12998960]

約数ペア:

[(1, 12998960), (2, 6499480), (4, 3249740), (5, 2599792), (8, 1624870), (10, 1299896), (13, 999920), (16, 812435), (20, 649948), (26, 499960), (29, 448240), (40, 324974), (52, 249980), (58, 224120), (65, 199984), (80, 162487), (104, 124990), (116, 112060), (130, 99992), (145, 89648), (208, 62495), (232, 56030), (260, 49996), (290, 44824), (377, 34480), (431, 30160), (464, 28015), (520, 24998), (580, 22412), (754, 17240), (862, 15080), (1040, 12499), (1160, 11206), (1508, 8620), (1724, 7540), (1885, 6896), (2155, 6032), (2320, 5603), (3016, 4310), (3448, 3770)]