31707080

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{11831}}^1$

素因数の和:11909

約数の個数: 32

約数和(自身を含む): 72411840

約数和(自身を除く): 40704760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 11831, 23662, 47324, 59155, 94648, 118310, 236620, 473240, 792677, 1585354, 3170708, 3963385, 6341416, 7926770, 15853540, 31707080]

約数ペア:

[(1, 31707080), (2, 15853540), (4, 7926770), (5, 6341416), (8, 3963385), (10, 3170708), (20, 1585354), (40, 792677), (67, 473240), (134, 236620), (268, 118310), (335, 94648), (536, 59155), (670, 47324), (1340, 23662), (2680, 11831)]