19757270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{401}}^1$

素因数の和:800

約数の個数: 32

約数和(自身を含む): 38495520

約数和(自身を除く): 18738250

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 379, 401, 758, 802, 1895, 2005, 3790, 4010, 4927, 5213, 9854, 10426, 24635, 26065, 49270, 52130, 151979, 303958, 759895, 1519790, 1975727, 3951454, 9878635, 19757270]

約数ペア:

[(1, 19757270), (2, 9878635), (5, 3951454), (10, 1975727), (13, 1519790), (26, 759895), (65, 303958), (130, 151979), (379, 52130), (401, 49270), (758, 26065), (802, 24635), (1895, 10426), (2005, 9854), (3790, 5213), (4010, 4927)]