25997920

素因数分解:

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

素因数の和:488

約数の個数: 96

約数和(自身を含む): 68584320

約数和(自身を除く): 42586400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 32, 40, 52, 58, 65, 80, 104, 116, 130, 145, 160, 208, 232, 260, 290, 377, 416, 431, 464, 520, 580, 754, 862, 928, 1040, 1160, 1508, 1724, 1885, 2080, 2155, 2320, 3016, 3448, 3770, 4310, 4640, 5603, 6032, 6896, 7540, 8620, 11206, 12064, 12499, 13792, 15080, 17240, 22412, 24998, 28015, 30160, 34480, 44824, 49996, 56030, 60320, 62495, 68960, 89648, 99992, 112060, 124990, 162487, 179296, 199984, 224120, 249980, 324974, 399968, 448240, 499960, 649948, 812435, 896480, 999920, 1299896, 1624870, 1999840, 2599792, 3249740, 5199584, 6499480, 12998960, 25997920]

約数ペア:

[(1, 25997920), (2, 12998960), (4, 6499480), (5, 5199584), (8, 3249740), (10, 2599792), (13, 1999840), (16, 1624870), (20, 1299896), (26, 999920), (29, 896480), (32, 812435), (40, 649948), (52, 499960), (58, 448240), (65, 399968), (80, 324974), (104, 249980), (116, 224120), (130, 199984), (145, 179296), (160, 162487), (208, 124990), (232, 112060), (260, 99992), (290, 89648), (377, 68960), (416, 62495), (431, 60320), (464, 56030), (520, 49996), (580, 44824), (754, 34480), (862, 30160), (928, 28015), (1040, 24998), (1160, 22412), (1508, 17240), (1724, 15080), (1885, 13792), (2080, 12499), (2155, 12064), (2320, 11206), (3016, 8620), (3448, 7540), (3770, 6896), (4310, 6032), (4640, 5603)]