28050640

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{673}}^1$

素因数の和:1207

約数の個数: 40

約数和(自身を含む): 65440008

約数和(自身を除く): 37389368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 673, 1042, 1346, 2084, 2605, 2692, 3365, 4168, 5210, 5384, 6730, 8336, 10420, 10768, 13460, 20840, 26920, 41680, 53840, 350633, 701266, 1402532, 1753165, 2805064, 3506330, 5610128, 7012660, 14025320, 28050640]

約数ペア:

[(1, 28050640), (2, 14025320), (4, 7012660), (5, 5610128), (8, 3506330), (10, 2805064), (16, 1753165), (20, 1402532), (40, 701266), (80, 350633), (521, 53840), (673, 41680), (1042, 26920), (1346, 20840), (2084, 13460), (2605, 10768), (2692, 10420), (3365, 8336), (4168, 6730), (5210, 5384)]