81786380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{10847}}^1$

素因数の和:10898

約数の個数: 48

約数和(自身を含む): 191358720

約数和(自身を除く): 109572340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 3770, 7540, 10847, 21694, 43388, 54235, 108470, 141011, 216940, 282022, 314563, 564044, 629126, 705055, 1258252, 1410110, 1572815, 2820220, 3145630, 4089319, 6291260, 8178638, 16357276, 20446595, 40893190, 81786380]

約数ペア:

[(1, 81786380), (2, 40893190), (4, 20446595), (5, 16357276), (10, 8178638), (13, 6291260), (20, 4089319), (26, 3145630), (29, 2820220), (52, 1572815), (58, 1410110), (65, 1258252), (116, 705055), (130, 629126), (145, 564044), (260, 314563), (290, 282022), (377, 216940), (580, 141011), (754, 108470), (1508, 54235), (1885, 43388), (3770, 21694), (7540, 10847)]