78872170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{20921}}^1$

素因数の和:20970

約数の個数: 32

約数和(自身を含む): 158170320

約数和(自身を除く): 79298150

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 20921, 41842, 104605, 209210, 271973, 543946, 606709, 1213418, 1359865, 2719730, 3033545, 6067090, 7887217, 15774434, 39436085, 78872170]

約数ペア:

[(1, 78872170), (2, 39436085), (5, 15774434), (10, 7887217), (13, 6067090), (26, 3033545), (29, 2719730), (58, 1359865), (65, 1213418), (130, 606709), (145, 543946), (290, 271973), (377, 209210), (754, 104605), (1885, 41842), (3770, 20921)]