81546020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{66841}}^1$

素因数の和:66911

約数の個数: 24

約数和(自身を含む): 174056568

約数和(自身を除く): 92510548

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 66841, 133682, 267364, 334205, 668410, 1336820, 4077301, 8154602, 16309204, 20386505, 40773010, 81546020]

約数ペア:

[(1, 81546020), (2, 40773010), (4, 20386505), (5, 16309204), (10, 8154602), (20, 4077301), (61, 1336820), (122, 668410), (244, 334205), (305, 267364), (610, 133682), (1220, 66841)]