25662520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2903}}^1$

素因数の和:2944

約数の個数: 64

約数和(自身を含む): 65862720

約数和(自身を除く): 40200200

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 2903, 4420, 5806, 8840, 11612, 14515, 23224, 29030, 37739, 49351, 58060, 75478, 98702, 116120, 150956, 188695, 197404, 246755, 301912, 377390, 394808, 493510, 641563, 754780, 987020, 1283126, 1509560, 1974040, 2566252, 3207815, 5132504, 6415630, 12831260, 25662520]

約数ペア:

[(1, 25662520), (2, 12831260), (4, 6415630), (5, 5132504), (8, 3207815), (10, 2566252), (13, 1974040), (17, 1509560), (20, 1283126), (26, 987020), (34, 754780), (40, 641563), (52, 493510), (65, 394808), (68, 377390), (85, 301912), (104, 246755), (130, 197404), (136, 188695), (170, 150956), (221, 116120), (260, 98702), (340, 75478), (442, 58060), (520, 49351), (680, 37739), (884, 29030), (1105, 23224), (1768, 14515), (2210, 11612), (2903, 8840), (4420, 5806)]