20311940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5431}}^1$

素因数の和:5468

約数の個数: 48

約数和(自身を含む): 49279104

約数和(自身を除く): 28967164

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 5431, 10862, 21724, 27155, 54310, 59741, 92327, 108620, 119482, 184654, 238964, 298705, 369308, 461635, 597410, 923270, 1015597, 1194820, 1846540, 2031194, 4062388, 5077985, 10155970, 20311940]

約数ペア:

[(1, 20311940), (2, 10155970), (4, 5077985), (5, 4062388), (10, 2031194), (11, 1846540), (17, 1194820), (20, 1015597), (22, 923270), (34, 597410), (44, 461635), (55, 369308), (68, 298705), (85, 238964), (110, 184654), (170, 119482), (187, 108620), (220, 92327), (340, 59741), (374, 54310), (748, 27155), (935, 21724), (1870, 10862), (3740, 5431)]