28759100

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{2069}}^1$

素因数の和:2222

約数の個数: 36

約数和(自身を含む): 62886600

約数和(自身を除く): 34127500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1390, 2069, 2780, 3475, 4138, 6950, 8276, 10345, 13900, 20690, 41380, 51725, 103450, 206900, 287591, 575182, 1150364, 1437955, 2875910, 5751820, 7189775, 14379550, 28759100]

約数ペア:

[(1, 28759100), (2, 14379550), (4, 7189775), (5, 5751820), (10, 2875910), (20, 1437955), (25, 1150364), (50, 575182), (100, 287591), (139, 206900), (278, 103450), (556, 51725), (695, 41380), (1390, 20690), (2069, 13900), (2780, 10345), (3475, 8276), (4138, 6950)]