199412180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{6521}}^1$

素因数の和:6680

約数の個数: 48

約数和(自身を含む): 460192320

約数和(自身を除く): 260780140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 556, 695, 1390, 1529, 2780, 3058, 6116, 6521, 7645, 13042, 15290, 26084, 30580, 32605, 65210, 71731, 130420, 143462, 286924, 358655, 717310, 906419, 1434620, 1812838, 3625676, 4532095, 9064190, 9970609, 18128380, 19941218, 39882436, 49853045, 99706090, 199412180]

約数ペア:

[(1, 199412180), (2, 99706090), (4, 49853045), (5, 39882436), (10, 19941218), (11, 18128380), (20, 9970609), (22, 9064190), (44, 4532095), (55, 3625676), (110, 1812838), (139, 1434620), (220, 906419), (278, 717310), (556, 358655), (695, 286924), (1390, 143462), (1529, 130420), (2780, 71731), (3058, 65210), (6116, 32605), (6521, 30580), (7645, 26084), (13042, 15290)]