25979920

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:248

約数の個数: 80

約数和(自身を含む): 63442368

約数和(自身を除く): 37462448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 67, 74, 80, 131, 134, 148, 185, 262, 268, 296, 335, 370, 524, 536, 592, 655, 670, 740, 1048, 1072, 1310, 1340, 1480, 2096, 2479, 2620, 2680, 2960, 4847, 4958, 5240, 5360, 8777, 9694, 9916, 10480, 12395, 17554, 19388, 19832, 24235, 24790, 35108, 38776, 39664, 43885, 48470, 49580, 70216, 77552, 87770, 96940, 99160, 140432, 175540, 193880, 198320, 324749, 351080, 387760, 649498, 702160, 1298996, 1623745, 2597992, 3247490, 5195984, 6494980, 12989960, 25979920]

約数ペア:

[(1, 25979920), (2, 12989960), (4, 6494980), (5, 5195984), (8, 3247490), (10, 2597992), (16, 1623745), (20, 1298996), (37, 702160), (40, 649498), (67, 387760), (74, 351080), (80, 324749), (131, 198320), (134, 193880), (148, 175540), (185, 140432), (262, 99160), (268, 96940), (296, 87770), (335, 77552), (370, 70216), (524, 49580), (536, 48470), (592, 43885), (655, 39664), (670, 38776), (740, 35108), (1048, 24790), (1072, 24235), (1310, 19832), (1340, 19388), (1480, 17554), (2096, 12395), (2479, 10480), (2620, 9916), (2680, 9694), (2960, 8777), (4847, 5360), (4958, 5240)]