68112460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{261971}}^1$

素因数の和:261993

約数の個数: 24

約数和(自身を含む): 154039536

約数和(自身を除く): 85927076

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 261971, 523942, 1047884, 1309855, 2619710, 3405623, 5239420, 6811246, 13622492, 17028115, 34056230, 68112460]

約数ペア:

[(1, 68112460), (2, 34056230), (4, 17028115), (5, 13622492), (10, 6811246), (13, 5239420), (20, 3405623), (26, 2619710), (52, 1309855), (65, 1047884), (130, 523942), (260, 261971)]