25209640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{283}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 60730560

約数和(自身を除く): 35520920

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 131, 136, 170, 262, 283, 340, 524, 566, 655, 680, 1048, 1132, 1310, 1415, 2227, 2264, 2620, 2830, 4454, 4811, 5240, 5660, 8908, 9622, 11135, 11320, 17816, 19244, 22270, 24055, 37073, 38488, 44540, 48110, 74146, 89080, 96220, 148292, 185365, 192440, 296584, 370730, 630241, 741460, 1260482, 1482920, 2520964, 3151205, 5041928, 6302410, 12604820, 25209640]

約数ペア:

[(1, 25209640), (2, 12604820), (4, 6302410), (5, 5041928), (8, 3151205), (10, 2520964), (17, 1482920), (20, 1260482), (34, 741460), (40, 630241), (68, 370730), (85, 296584), (131, 192440), (136, 185365), (170, 148292), (262, 96220), (283, 89080), (340, 74146), (524, 48110), (566, 44540), (655, 38488), (680, 37073), (1048, 24055), (1132, 22270), (1310, 19244), (1415, 17816), (2227, 11320), (2264, 11135), (2620, 9622), (2830, 8908), (4454, 5660), (4811, 5240)]