20708360

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7727}}^1$

素因数の和:7805

約数の個数: 32

約数和(自身を含む): 47295360

約数和(自身を除く): 26587000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 7727, 15454, 30908, 38635, 61816, 77270, 154540, 309080, 517709, 1035418, 2070836, 2588545, 4141672, 5177090, 10354180, 20708360]

約数ペア:

[(1, 20708360), (2, 10354180), (4, 5177090), (5, 4141672), (8, 2588545), (10, 2070836), (20, 1035418), (40, 517709), (67, 309080), (134, 154540), (268, 77270), (335, 61816), (536, 38635), (670, 30908), (1340, 15454), (2680, 7727)]