86790980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{337}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 186251520

約数和(自身を除く): 99460540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 163, 316, 326, 337, 395, 652, 674, 790, 815, 1348, 1580, 1630, 1685, 3260, 3370, 6740, 12877, 25754, 26623, 51508, 53246, 54931, 64385, 106492, 109862, 128770, 133115, 219724, 257540, 266230, 274655, 532460, 549310, 1098620, 4339549, 8679098, 17358196, 21697745, 43395490, 86790980]

約数ペア:

[(1, 86790980), (2, 43395490), (4, 21697745), (5, 17358196), (10, 8679098), (20, 4339549), (79, 1098620), (158, 549310), (163, 532460), (316, 274655), (326, 266230), (337, 257540), (395, 219724), (652, 133115), (674, 128770), (790, 109862), (815, 106492), (1348, 64385), (1580, 54931), (1630, 53246), (1685, 51508), (3260, 26623), (3370, 25754), (6740, 12877)]