81920438

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{599}}^1$

素因数の和:740

約数の個数: 32

約数和(自身を含む): 133920000

約数和(自身を除く): 51999562

約数列:

[1, 2, 19, 38, 59, 61, 118, 122, 599, 1121, 1159, 1198, 2242, 2318, 3599, 7198, 11381, 22762, 35341, 36539, 68381, 70682, 73078, 136762, 671479, 694241, 1342958, 1388482, 2155801, 4311602, 40960219, 81920438]

約数ペア:

[(1, 81920438), (2, 40960219), (19, 4311602), (38, 2155801), (59, 1388482), (61, 1342958), (118, 694241), (122, 671479), (599, 136762), (1121, 73078), (1159, 70682), (1198, 68381), (2242, 36539), (2318, 35341), (3599, 22762), (7198, 11381)]