2197240

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{337}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 4988880

約数和(自身を除く): 2791640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 337, 652, 674, 815, 1304, 1348, 1630, 1685, 2696, 3260, 3370, 6520, 6740, 13480, 54931, 109862, 219724, 274655, 439448, 549310, 1098620, 2197240]

約数ペア:

[(1, 2197240), (2, 1098620), (4, 549310), (5, 439448), (8, 274655), (10, 219724), (20, 109862), (40, 54931), (163, 13480), (326, 6740), (337, 6520), (652, 3370), (674, 3260), (815, 2696), (1304, 1685), (1348, 1630)]