81158520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{2203}}^1$

素因数の和:2524

約数の個数: 64

約数和(自身を含む): 244379520

約数和(自身を除く): 163221000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 307, 614, 921, 1228, 1535, 1842, 2203, 2456, 3070, 3684, 4406, 4605, 6140, 6609, 7368, 8812, 9210, 11015, 12280, 13218, 17624, 18420, 22030, 26436, 33045, 36840, 44060, 52872, 66090, 88120, 132180, 264360, 676321, 1352642, 2028963, 2705284, 3381605, 4057926, 5410568, 6763210, 8115852, 10144815, 13526420, 16231704, 20289630, 27052840, 40579260, 81158520]

約数ペア:

[(1, 81158520), (2, 40579260), (3, 27052840), (4, 20289630), (5, 16231704), (6, 13526420), (8, 10144815), (10, 8115852), (12, 6763210), (15, 5410568), (20, 4057926), (24, 3381605), (30, 2705284), (40, 2028963), (60, 1352642), (120, 676321), (307, 264360), (614, 132180), (921, 88120), (1228, 66090), (1535, 52872), (1842, 44060), (2203, 36840), (2456, 33045), (3070, 26436), (3684, 22030), (4406, 18420), (4605, 17624), (6140, 13218), (6609, 12280), (7368, 11015), (8812, 9210)]