28066860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{647}}^1$

素因数の和:903

約数の個数: 72

約数和(自身を含む): 85621536

約数和(自身を除く): 57554676

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 241, 482, 647, 723, 964, 1205, 1294, 1446, 1941, 2169, 2410, 2588, 2892, 3235, 3615, 3882, 4338, 4820, 5823, 6470, 7230, 7764, 8676, 9705, 10845, 11646, 12940, 14460, 19410, 21690, 23292, 29115, 38820, 43380, 58230, 116460, 155927, 311854, 467781, 623708, 779635, 935562, 1403343, 1559270, 1871124, 2338905, 2806686, 3118540, 4677810, 5613372, 7016715, 9355620, 14033430, 28066860]

約数ペア:

[(1, 28066860), (2, 14033430), (3, 9355620), (4, 7016715), (5, 5613372), (6, 4677810), (9, 3118540), (10, 2806686), (12, 2338905), (15, 1871124), (18, 1559270), (20, 1403343), (30, 935562), (36, 779635), (45, 623708), (60, 467781), (90, 311854), (180, 155927), (241, 116460), (482, 58230), (647, 43380), (723, 38820), (964, 29115), (1205, 23292), (1294, 21690), (1446, 19410), (1941, 14460), (2169, 12940), (2410, 11646), (2588, 10845), (2892, 9705), (3235, 8676), (3615, 7764), (3882, 7230), (4338, 6470), (4820, 5823)]