20013430

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:408

約数の個数: 32

約数和(自身を含む): 36936000

約数和(自身を除く): 16922570

約数列:

[1, 2, 5, 10, 89, 113, 178, 199, 226, 398, 445, 565, 890, 995, 1130, 1990, 10057, 17711, 20114, 22487, 35422, 44974, 50285, 88555, 100570, 112435, 177110, 224870, 2001343, 4002686, 10006715, 20013430]

約数ペア:

[(1, 20013430), (2, 10006715), (5, 4002686), (10, 2001343), (89, 224870), (113, 177110), (178, 112435), (199, 100570), (226, 88555), (398, 50285), (445, 44974), (565, 35422), (890, 22487), (995, 20114), (1130, 17711), (1990, 10057)]