64427080

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{5081}}^1$

素因数の和:5409

約数の個数: 32

約数和(自身を含む): 145446840

約数和(自身を除く): 81019760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 5081, 6340, 10162, 12680, 20324, 25405, 40648, 50810, 101620, 203240, 1610677, 3221354, 6442708, 8053385, 12885416, 16106770, 32213540, 64427080]

約数ペア:

[(1, 64427080), (2, 32213540), (4, 16106770), (5, 12885416), (8, 8053385), (10, 6442708), (20, 3221354), (40, 1610677), (317, 203240), (634, 101620), (1268, 50810), (1585, 40648), (2536, 25405), (3170, 20324), (5081, 12680), (6340, 10162)]