2661220

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{491}}^1$

素因数の和:771

約数の個数: 24

約数和(自身を含む): 5620608

約数和(自身を除く): 2959388

約数列:

[1, 2, 4, 5, 10, 20, 271, 491, 542, 982, 1084, 1355, 1964, 2455, 2710, 4910, 5420, 9820, 133061, 266122, 532244, 665305, 1330610, 2661220]

約数ペア:

[(1, 2661220), (2, 1330610), (4, 665305), (5, 532244), (10, 266122), (20, 133061), (271, 9820), (491, 5420), (542, 4910), (982, 2710), (1084, 2455), (1355, 1964)]