25328680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{727}}^1$

素因数の和:818

約数の個数: 64

約数和(自身を含む): 62375040

約数和(自身を除く): 37046360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 104, 130, 134, 260, 268, 335, 520, 536, 670, 727, 871, 1340, 1454, 1742, 2680, 2908, 3484, 3635, 4355, 5816, 6968, 7270, 8710, 9451, 14540, 17420, 18902, 29080, 34840, 37804, 47255, 48709, 75608, 94510, 97418, 189020, 194836, 243545, 378040, 389672, 487090, 633217, 974180, 1266434, 1948360, 2532868, 3166085, 5065736, 6332170, 12664340, 25328680]

約数ペア:

[(1, 25328680), (2, 12664340), (4, 6332170), (5, 5065736), (8, 3166085), (10, 2532868), (13, 1948360), (20, 1266434), (26, 974180), (40, 633217), (52, 487090), (65, 389672), (67, 378040), (104, 243545), (130, 194836), (134, 189020), (260, 97418), (268, 94510), (335, 75608), (520, 48709), (536, 47255), (670, 37804), (727, 34840), (871, 29080), (1340, 18902), (1454, 17420), (1742, 14540), (2680, 9451), (2908, 8710), (3484, 7270), (3635, 6968), (4355, 5816)]