163491640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{314407}}^1$

素因数の和:314431

約数の個数: 32

約数和(自身を含む): 396154080

約数和(自身を除く): 232662440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 314407, 628814, 1257628, 1572035, 2515256, 3144070, 4087291, 6288140, 8174582, 12576280, 16349164, 20436455, 32698328, 40872910, 81745820, 163491640]

約数ペア:

[(1, 163491640), (2, 81745820), (4, 40872910), (5, 32698328), (8, 20436455), (10, 16349164), (13, 12576280), (20, 8174582), (26, 6288140), (40, 4087291), (52, 3144070), (65, 2515256), (104, 1572035), (130, 1257628), (260, 628814), (520, 314407)]