61278220

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{18797}}^1$

素因数の和:18969

約数の個数: 24

約数和(自身を含む): 129480624

約数和(自身を除く): 68202404

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 18797, 37594, 75188, 93985, 187970, 375940, 3063911, 6127822, 12255644, 15319555, 30639110, 61278220]

約数ペア:

[(1, 61278220), (2, 30639110), (4, 15319555), (5, 12255644), (10, 6127822), (20, 3063911), (163, 375940), (326, 187970), (652, 93985), (815, 75188), (1630, 37594), (3260, 18797)]