18710780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{85049}}^1$

素因数の和:85069

約数の個数: 24

約数和(自身を含む): 42865200

約数和(自身を除く): 24154420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 85049, 170098, 340196, 425245, 850490, 935539, 1700980, 1871078, 3742156, 4677695, 9355390, 18710780]

約数ペア:

[(1, 18710780), (2, 9355390), (4, 4677695), (5, 3742156), (10, 1871078), (11, 1700980), (20, 935539), (22, 850490), (44, 425245), (55, 340196), (110, 170098), (220, 85049)]