82818980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^3\times {\mathrm{139}}^1$

素因数の和:241

約数の個数: 48

約数和(自身を含む): 181009920

約数和(自身を除く): 98190940

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 139, 155, 278, 310, 556, 620, 695, 961, 1390, 1922, 2780, 3844, 4309, 4805, 8618, 9610, 17236, 19220, 21545, 29791, 43090, 59582, 86180, 119164, 133579, 148955, 267158, 297910, 534316, 595820, 667895, 1335790, 2671580, 4140949, 8281898, 16563796, 20704745, 41409490, 82818980]

約数ペア:

[(1, 82818980), (2, 41409490), (4, 20704745), (5, 16563796), (10, 8281898), (20, 4140949), (31, 2671580), (62, 1335790), (124, 667895), (139, 595820), (155, 534316), (278, 297910), (310, 267158), (556, 148955), (620, 133579), (695, 119164), (961, 86180), (1390, 59582), (1922, 43090), (2780, 29791), (3844, 21545), (4309, 19220), (4805, 17236), (8618, 9610)]