18845240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11491}}^1$

素因数の和:11543

約数の個数: 32

約数和(自身を含む): 43439760

約数和(自身を除く): 24594520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11491, 22982, 45964, 57455, 91928, 114910, 229820, 459640, 471131, 942262, 1884524, 2355655, 3769048, 4711310, 9422620, 18845240]

約数ペア:

[(1, 18845240), (2, 9422620), (4, 4711310), (5, 3769048), (8, 2355655), (10, 1884524), (20, 942262), (40, 471131), (41, 459640), (82, 229820), (164, 114910), (205, 91928), (328, 57455), (410, 45964), (820, 22982), (1640, 11491)]