639589438

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{599}}^1\times {\mathrm{28099}}^1$

素因数の和:28719

約数の個数: 16

約数和(自身を含む): 1011600000

約数和(自身を除く): 372010562

約数列:

[1, 2, 19, 38, 599, 1198, 11381, 22762, 28099, 56198, 533881, 1067762, 16831301, 33662602, 319794719, 639589438]

約数ペア:

[(1, 639589438), (2, 319794719), (19, 33662602), (38, 16831301), (599, 1067762), (1198, 533881), (11381, 56198), (22762, 28099)]