25838480

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:312

約数の個数: 80

約数和(自身を含む): 64281600

約数和(自身を除く): 38443120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 89, 95, 152, 178, 190, 191, 304, 356, 380, 382, 445, 712, 760, 764, 890, 955, 1424, 1520, 1528, 1691, 1780, 1910, 3056, 3382, 3560, 3629, 3820, 6764, 7120, 7258, 7640, 8455, 13528, 14516, 15280, 16910, 16999, 18145, 27056, 29032, 33820, 33998, 36290, 58064, 67640, 67996, 72580, 84995, 135280, 135992, 145160, 169990, 271984, 290320, 322981, 339980, 645962, 679960, 1291924, 1359920, 1614905, 2583848, 3229810, 5167696, 6459620, 12919240, 25838480]

約数ペア:

[(1, 25838480), (2, 12919240), (4, 6459620), (5, 5167696), (8, 3229810), (10, 2583848), (16, 1614905), (19, 1359920), (20, 1291924), (38, 679960), (40, 645962), (76, 339980), (80, 322981), (89, 290320), (95, 271984), (152, 169990), (178, 145160), (190, 135992), (191, 135280), (304, 84995), (356, 72580), (380, 67996), (382, 67640), (445, 58064), (712, 36290), (760, 33998), (764, 33820), (890, 29032), (955, 27056), (1424, 18145), (1520, 16999), (1528, 16910), (1691, 15280), (1780, 14516), (1910, 13528), (3056, 8455), (3382, 7640), (3560, 7258), (3629, 7120), (3820, 6764)]