28487000

素因数分解:

$2^3\times 5^3\times {\mathrm{61}}^1\times {\mathrm{467}}^1$

素因数の和:549

約数の個数: 64

約数和(自身を含む): 67897440

約数和(自身を除く): 39410440

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 125, 200, 244, 250, 305, 467, 488, 500, 610, 934, 1000, 1220, 1525, 1868, 2335, 2440, 3050, 3736, 4670, 6100, 7625, 9340, 11675, 12200, 15250, 18680, 23350, 28487, 30500, 46700, 56974, 58375, 61000, 93400, 113948, 116750, 142435, 227896, 233500, 284870, 467000, 569740, 712175, 1139480, 1424350, 2848700, 3560875, 5697400, 7121750, 14243500, 28487000]

約数ペア:

[(1, 28487000), (2, 14243500), (4, 7121750), (5, 5697400), (8, 3560875), (10, 2848700), (20, 1424350), (25, 1139480), (40, 712175), (50, 569740), (61, 467000), (100, 284870), (122, 233500), (125, 227896), (200, 142435), (244, 116750), (250, 113948), (305, 93400), (467, 61000), (488, 58375), (500, 56974), (610, 46700), (934, 30500), (1000, 28487), (1220, 23350), (1525, 18680), (1868, 15250), (2335, 12200), (2440, 11675), (3050, 9340), (3736, 7625), (4670, 6100)]