259675840

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26177}}^1$

素因数の和:26225

約数の個数: 56

約数和(自身を含む): 638324352

約数和(自身を除く): 378648512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 26177, 52354, 104708, 130885, 209416, 261770, 418832, 523540, 811487, 837664, 1047080, 1622974, 1675328, 2094160, 3245948, 4057435, 4188320, 6491896, 8114870, 8376640, 12983792, 16229740, 25967584, 32459480, 51935168, 64918960, 129837920, 259675840]

約数ペア:

[(1, 259675840), (2, 129837920), (4, 64918960), (5, 51935168), (8, 32459480), (10, 25967584), (16, 16229740), (20, 12983792), (31, 8376640), (32, 8114870), (40, 6491896), (62, 4188320), (64, 4057435), (80, 3245948), (124, 2094160), (155, 1675328), (160, 1622974), (248, 1047080), (310, 837664), (320, 811487), (496, 523540), (620, 418832), (992, 261770), (1240, 209416), (1984, 130885), (2480, 104708), (4960, 52354), (9920, 26177)]