64047980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{47797}}^1$

素因数の和:47873

約数の個数: 24

約数和(自身を含む): 136511088

約数和(自身を除く): 72463108

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 47797, 95594, 191188, 238985, 477970, 955940, 3202399, 6404798, 12809596, 16011995, 32023990, 64047980]

約数ペア:

[(1, 64047980), (2, 32023990), (4, 16011995), (5, 12809596), (10, 6404798), (20, 3202399), (67, 955940), (134, 477970), (268, 238985), (335, 191188), (670, 95594), (1340, 47797)]