25395280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:364

約数の個数: 80

約数和(自身を含む): 63638784

約数和(自身を除く): 38243504

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 71, 80, 85, 136, 142, 170, 263, 272, 284, 340, 355, 526, 568, 680, 710, 1052, 1136, 1207, 1315, 1360, 1420, 2104, 2414, 2630, 2840, 4208, 4471, 4828, 5260, 5680, 6035, 8942, 9656, 10520, 12070, 17884, 18673, 19312, 21040, 22355, 24140, 35768, 37346, 44710, 48280, 71536, 74692, 89420, 93365, 96560, 149384, 178840, 186730, 298768, 317441, 357680, 373460, 634882, 746920, 1269764, 1493840, 1587205, 2539528, 3174410, 5079056, 6348820, 12697640, 25395280]

約数ペア:

[(1, 25395280), (2, 12697640), (4, 6348820), (5, 5079056), (8, 3174410), (10, 2539528), (16, 1587205), (17, 1493840), (20, 1269764), (34, 746920), (40, 634882), (68, 373460), (71, 357680), (80, 317441), (85, 298768), (136, 186730), (142, 178840), (170, 149384), (263, 96560), (272, 93365), (284, 89420), (340, 74692), (355, 71536), (526, 48280), (568, 44710), (680, 37346), (710, 35768), (1052, 24140), (1136, 22355), (1207, 21040), (1315, 19312), (1360, 18673), (1420, 17884), (2104, 12070), (2414, 10520), (2630, 9656), (2840, 8942), (4208, 6035), (4471, 5680), (4828, 5260)]