20880848

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68687}}^1$

素因数の和:68714

約数の個数: 20

約数和(自身を含む): 42586560

約数和(自身を除く): 21705712

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68687, 137374, 274748, 549496, 1098992, 1305053, 2610106, 5220212, 10440424, 20880848]

約数ペア:

[(1, 20880848), (2, 10440424), (4, 5220212), (8, 2610106), (16, 1305053), (19, 1098992), (38, 549496), (76, 274748), (152, 137374), (304, 68687)]