129869140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{1453}}^1$

素因数の和:1612

約数の個数: 48

約数和(自身を含む): 282134160

約数和(自身を除く): 152265020

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 109, 164, 205, 218, 410, 436, 545, 820, 1090, 1453, 2180, 2906, 4469, 5812, 7265, 8938, 14530, 17876, 22345, 29060, 44690, 59573, 89380, 119146, 158377, 238292, 297865, 316754, 595730, 633508, 791885, 1191460, 1583770, 3167540, 6493457, 12986914, 25973828, 32467285, 64934570, 129869140]

約数ペア:

[(1, 129869140), (2, 64934570), (4, 32467285), (5, 25973828), (10, 12986914), (20, 6493457), (41, 3167540), (82, 1583770), (109, 1191460), (164, 791885), (205, 633508), (218, 595730), (410, 316754), (436, 297865), (545, 238292), (820, 158377), (1090, 119146), (1453, 89380), (2180, 59573), (2906, 44690), (4469, 29060), (5812, 22345), (7265, 17876), (8938, 14530)]