2016218920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{8513}}^1$

素因数の和:8746

約数の個数: 64

約数和(自身を含む): 4707901440

約数和(自身を除く): 2691682520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 191, 248, 310, 382, 620, 764, 955, 1240, 1528, 1910, 3820, 5921, 7640, 8513, 11842, 17026, 23684, 29605, 34052, 42565, 47368, 59210, 68104, 85130, 118420, 170260, 236840, 263903, 340520, 527806, 1055612, 1319515, 1625983, 2111224, 2639030, 3251966, 5278060, 6503932, 8129915, 10556120, 13007864, 16259830, 32519660, 50405473, 65039320, 100810946, 201621892, 252027365, 403243784, 504054730, 1008109460, 2016218920]

約数ペア:

[(1, 2016218920), (2, 1008109460), (4, 504054730), (5, 403243784), (8, 252027365), (10, 201621892), (20, 100810946), (31, 65039320), (40, 50405473), (62, 32519660), (124, 16259830), (155, 13007864), (191, 10556120), (248, 8129915), (310, 6503932), (382, 5278060), (620, 3251966), (764, 2639030), (955, 2111224), (1240, 1625983), (1528, 1319515), (1910, 1055612), (3820, 527806), (5921, 340520), (7640, 263903), (8513, 236840), (11842, 170260), (17026, 118420), (23684, 85130), (29605, 68104), (34052, 59210), (42565, 47368)]