25387640

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{9473}}^1$

素因数の和:9551

約数の個数: 32

約数和(自身を含む): 57980880

約数和(自身を除く): 32593240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 9473, 18946, 37892, 47365, 75784, 94730, 189460, 378920, 634691, 1269382, 2538764, 3173455, 5077528, 6346910, 12693820, 25387640]

約数ペア:

[(1, 25387640), (2, 12693820), (4, 6346910), (5, 5077528), (8, 3173455), (10, 2538764), (20, 1269382), (40, 634691), (67, 378920), (134, 189460), (268, 94730), (335, 75784), (536, 47365), (670, 37892), (1340, 18946), (2680, 9473)]