12697640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:362

約数の個数: 64

約数和(自身を含む): 30792960

約数和(自身を除く): 18095320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 136, 142, 170, 263, 284, 340, 355, 526, 568, 680, 710, 1052, 1207, 1315, 1420, 2104, 2414, 2630, 2840, 4471, 4828, 5260, 6035, 8942, 9656, 10520, 12070, 17884, 18673, 22355, 24140, 35768, 37346, 44710, 48280, 74692, 89420, 93365, 149384, 178840, 186730, 317441, 373460, 634882, 746920, 1269764, 1587205, 2539528, 3174410, 6348820, 12697640]

約数ペア:

[(1, 12697640), (2, 6348820), (4, 3174410), (5, 2539528), (8, 1587205), (10, 1269764), (17, 746920), (20, 634882), (34, 373460), (40, 317441), (68, 186730), (71, 178840), (85, 149384), (136, 93365), (142, 89420), (170, 74692), (263, 48280), (284, 44710), (340, 37346), (355, 35768), (526, 24140), (568, 22355), (680, 18673), (710, 17884), (1052, 12070), (1207, 10520), (1315, 9656), (1420, 8942), (2104, 6035), (2414, 5260), (2630, 4828), (2840, 4471)]