218163640

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{11831}}^1$

素因数の和:12303

約数の個数: 32

約数和(自身を含む): 491974560

約数和(自身を除く): 273810920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 1844, 2305, 3688, 4610, 9220, 11831, 18440, 23662, 47324, 59155, 94648, 118310, 236620, 473240, 5454091, 10908182, 21816364, 27270455, 43632728, 54540910, 109081820, 218163640]

約数ペア:

[(1, 218163640), (2, 109081820), (4, 54540910), (5, 43632728), (8, 27270455), (10, 21816364), (20, 10908182), (40, 5454091), (461, 473240), (922, 236620), (1844, 118310), (2305, 94648), (3688, 59155), (4610, 47324), (9220, 23662), (11831, 18440)]