64961585

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{313}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 87779328

約数和(自身を除く): 22817743

約数列:

[1, 5, 13, 31, 65, 103, 155, 313, 403, 515, 1339, 1565, 2015, 3193, 4069, 6695, 9703, 15965, 20345, 32239, 41509, 48515, 126139, 161195, 207545, 419107, 630695, 999409, 2095535, 4997045, 12992317, 64961585]

約数ペア:

[(1, 64961585), (5, 12992317), (13, 4997045), (31, 2095535), (65, 999409), (103, 630695), (155, 419107), (313, 207545), (403, 161195), (515, 126139), (1339, 48515), (1565, 41509), (2015, 32239), (3193, 20345), (4069, 15965), (6695, 9703)]