639985822

素因数分解:

$2^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{161531}}^1$

素因数の和:161823

約数の個数: 16

約数和(自身を含む): 1101002112

約数和(自身を除く): 461016290

約数列:

[1, 2, 7, 14, 283, 566, 1981, 3962, 161531, 323062, 1130717, 2261434, 45713273, 91426546, 319992911, 639985822]

約数ペア:

[(1, 639985822), (2, 319992911), (7, 91426546), (14, 45713273), (283, 2261434), (566, 1130717), (1981, 323062), (3962, 161531)]