220142920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{103841}}^1$

素因数の和:103905

約数の個数: 32

約数和(自身を含む): 504672120

約数和(自身を除く): 284529200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 103841, 207682, 415364, 519205, 830728, 1038410, 2076820, 4153640, 5503573, 11007146, 22014292, 27517865, 44028584, 55035730, 110071460, 220142920]

約数ペア:

[(1, 220142920), (2, 110071460), (4, 55035730), (5, 44028584), (8, 27517865), (10, 22014292), (20, 11007146), (40, 5503573), (53, 4153640), (106, 2076820), (212, 1038410), (265, 830728), (424, 519205), (530, 415364), (1060, 207682), (2120, 103841)]