166456040

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{78517}}^1$

素因数の和:78581

約数の個数: 32

約数和(自身を含む): 381597480

約数和(自身を除く): 215141440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 78517, 157034, 314068, 392585, 628136, 785170, 1570340, 3140680, 4161401, 8322802, 16645604, 20807005, 33291208, 41614010, 83228020, 166456040]

約数ペア:

[(1, 166456040), (2, 83228020), (4, 41614010), (5, 33291208), (8, 20807005), (10, 16645604), (20, 8322802), (40, 4161401), (53, 3140680), (106, 1570340), (212, 785170), (265, 628136), (424, 392585), (530, 314068), (1060, 157034), (2120, 78517)]