85040020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{863}}^1$

素因数の和:1264

約数の個数: 48

約数和(自身を含む): 193052160

約数和(自身を除く): 108012140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 379, 758, 863, 1516, 1726, 1895, 3452, 3790, 4315, 4927, 7580, 8630, 9854, 11219, 17260, 19708, 22438, 24635, 44876, 49270, 56095, 98540, 112190, 224380, 327077, 654154, 1308308, 1635385, 3270770, 4252001, 6541540, 8504002, 17008004, 21260005, 42520010, 85040020]

約数ペア:

[(1, 85040020), (2, 42520010), (4, 21260005), (5, 17008004), (10, 8504002), (13, 6541540), (20, 4252001), (26, 3270770), (52, 1635385), (65, 1308308), (130, 654154), (260, 327077), (379, 224380), (758, 112190), (863, 98540), (1516, 56095), (1726, 49270), (1895, 44876), (3452, 24635), (3790, 22438), (4315, 19708), (4927, 17260), (7580, 11219), (8630, 9854)]