648366960440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{42239}}^1\times {\mathrm{12379}}^1$

素因数の和:54660

約数の個数: 64

約数和(自身を含む): 1506041856000

約数和(自身を除く): 857674895560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 12379, 24758, 42239, 49516, 61895, 84478, 99032, 123790, 168956, 211195, 247580, 337912, 383749, 422390, 495160, 767498, 844780, 1309409, 1534996, 1689560, 1918745, 2618818, 3069992, 3837490, 5237636, 6547045, 7674980, 10475272, 13094090, 15349960, 26188180, 52376360, 522876581, 1045753162, 2091506324, 2614382905, 4183012648, 5228765810, 10457531620, 16209174011, 20915063240, 32418348022, 64836696044, 81045870055, 129673392088, 162091740110, 324183480220, 648366960440]

約数ペア:

[(1, 648366960440), (2, 324183480220), (4, 162091740110), (5, 129673392088), (8, 81045870055), (10, 64836696044), (20, 32418348022), (31, 20915063240), (40, 16209174011), (62, 10457531620), (124, 5228765810), (155, 4183012648), (248, 2614382905), (310, 2091506324), (620, 1045753162), (1240, 522876581), (12379, 52376360), (24758, 26188180), (42239, 15349960), (49516, 13094090), (61895, 10475272), (84478, 7674980), (99032, 6547045), (123790, 5237636), (168956, 3837490), (211195, 3069992), (247580, 2618818), (337912, 1918745), (383749, 1689560), (422390, 1534996), (495160, 1309409), (767498, 844780)]