25880920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{701}}^1$

素因数の和:796

約数の個数: 64

約数和(自身を含む): 63685440

約数和(自身を除く): 37804520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 71, 104, 130, 142, 260, 284, 355, 520, 568, 701, 710, 923, 1402, 1420, 1846, 2804, 2840, 3505, 3692, 4615, 5608, 7010, 7384, 9113, 9230, 14020, 18226, 18460, 28040, 36452, 36920, 45565, 49771, 72904, 91130, 99542, 182260, 199084, 248855, 364520, 398168, 497710, 647023, 995420, 1294046, 1990840, 2588092, 3235115, 5176184, 6470230, 12940460, 25880920]

約数ペア:

[(1, 25880920), (2, 12940460), (4, 6470230), (5, 5176184), (8, 3235115), (10, 2588092), (13, 1990840), (20, 1294046), (26, 995420), (40, 647023), (52, 497710), (65, 398168), (71, 364520), (104, 248855), (130, 199084), (142, 182260), (260, 99542), (284, 91130), (355, 72904), (520, 49771), (568, 45565), (701, 36920), (710, 36452), (923, 28040), (1402, 18460), (1420, 18226), (1846, 14020), (2804, 9230), (2840, 9113), (3505, 7384), (3692, 7010), (4615, 5608)]