79889420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307267}}^1$

素因数の和:307289

約数の個数: 24

約数和(自身を含む): 180673584

約数和(自身を除く): 100784164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 307267, 614534, 1229068, 1536335, 3072670, 3994471, 6145340, 7988942, 15977884, 19972355, 39944710, 79889420]

約数ペア:

[(1, 79889420), (2, 39944710), (4, 19972355), (5, 15977884), (10, 7988942), (13, 6145340), (20, 3994471), (26, 3072670), (52, 1536335), (65, 1229068), (130, 614534), (260, 307267)]