18855140

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{14071}}^1$

素因数の和:14147

約数の個数: 24

約数和(自身を含む): 40189632

約数和(自身を除く): 21334492

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 14071, 28142, 56284, 70355, 140710, 281420, 942757, 1885514, 3771028, 4713785, 9427570, 18855140]

約数ペア:

[(1, 18855140), (2, 9427570), (4, 4713785), (5, 3771028), (10, 1885514), (20, 942757), (67, 281420), (134, 140710), (268, 70355), (335, 56284), (670, 28142), (1340, 14071)]