20855930

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71917}}^1$

素因数の和:71953

約数の個数: 16

約数和(自身を含む): 38835720

約数和(自身を除く): 17979790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 71917, 143834, 359585, 719170, 2085593, 4171186, 10427965, 20855930]

約数ペア:

[(1, 20855930), (2, 10427965), (5, 4171186), (10, 2085593), (29, 719170), (58, 359585), (145, 143834), (290, 71917)]