20104140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{317}}^1$

素因数の和:487

約数の個数: 96

約数和(自身を含む): 64963584

約数和(自身を除く): 44859444

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 151, 210, 302, 317, 420, 453, 604, 634, 755, 906, 951, 1057, 1268, 1510, 1585, 1812, 1902, 2114, 2219, 2265, 3020, 3170, 3171, 3804, 4228, 4438, 4530, 4755, 5285, 6340, 6342, 6657, 8876, 9060, 9510, 10570, 11095, 12684, 13314, 15855, 19020, 21140, 22190, 26628, 31710, 33285, 44380, 47867, 63420, 66570, 95734, 133140, 143601, 191468, 239335, 287202, 335069, 478670, 574404, 670138, 718005, 957340, 1005207, 1340276, 1436010, 1675345, 2010414, 2872020, 3350690, 4020828, 5026035, 6701380, 10052070, 20104140]

約数ペア:

[(1, 20104140), (2, 10052070), (3, 6701380), (4, 5026035), (5, 4020828), (6, 3350690), (7, 2872020), (10, 2010414), (12, 1675345), (14, 1436010), (15, 1340276), (20, 1005207), (21, 957340), (28, 718005), (30, 670138), (35, 574404), (42, 478670), (60, 335069), (70, 287202), (84, 239335), (105, 191468), (140, 143601), (151, 133140), (210, 95734), (302, 66570), (317, 63420), (420, 47867), (453, 44380), (604, 33285), (634, 31710), (755, 26628), (906, 22190), (951, 21140), (1057, 19020), (1268, 15855), (1510, 13314), (1585, 12684), (1812, 11095), (1902, 10570), (2114, 9510), (2219, 9060), (2265, 8876), (3020, 6657), (3170, 6342), (3171, 6340), (3804, 5285), (4228, 4755), (4438, 4530)]