68258840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131267}}^1$

素因数の和:131291

約数の個数: 32

約数和(自身を含む): 165397680

約数和(自身を除く): 97138840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 131267, 262534, 525068, 656335, 1050136, 1312670, 1706471, 2625340, 3412942, 5250680, 6825884, 8532355, 13651768, 17064710, 34129420, 68258840]

約数ペア:

[(1, 68258840), (2, 34129420), (4, 17064710), (5, 13651768), (8, 8532355), (10, 6825884), (13, 5250680), (20, 3412942), (26, 2625340), (40, 1706471), (52, 1312670), (65, 1050136), (104, 656335), (130, 525068), (260, 262534), (520, 131267)]