31527980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1031}}^1$

素因数の和:1190

約数の個数: 48

約数和(自身を含む): 72817920

約数和(自身を除く): 41289940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 556, 695, 1031, 1390, 1529, 2062, 2780, 3058, 4124, 5155, 6116, 7645, 10310, 11341, 15290, 20620, 22682, 30580, 45364, 56705, 113410, 143309, 226820, 286618, 573236, 716545, 1433090, 1576399, 2866180, 3152798, 6305596, 7881995, 15763990, 31527980]

約数ペア:

[(1, 31527980), (2, 15763990), (4, 7881995), (5, 6305596), (10, 3152798), (11, 2866180), (20, 1576399), (22, 1433090), (44, 716545), (55, 573236), (110, 286618), (139, 226820), (220, 143309), (278, 113410), (556, 56705), (695, 45364), (1031, 30580), (1390, 22682), (1529, 20620), (2062, 15290), (2780, 11341), (3058, 10310), (4124, 7645), (5155, 6116)]