394360850

素因数分解:

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

素因数の和:20975

約数の個数: 48

約数和(自身を含む): 817213320

約数和(自身を除く): 422852470

約数列:

[1, 2, 5, 10, 13, 25, 26, 29, 50, 58, 65, 130, 145, 290, 325, 377, 650, 725, 754, 1450, 1885, 3770, 9425, 18850, 20921, 41842, 104605, 209210, 271973, 523025, 543946, 606709, 1046050, 1213418, 1359865, 2719730, 3033545, 6067090, 6799325, 7887217, 13598650, 15167725, 15774434, 30335450, 39436085, 78872170, 197180425, 394360850]

約数ペア:

[(1, 394360850), (2, 197180425), (5, 78872170), (10, 39436085), (13, 30335450), (25, 15774434), (26, 15167725), (29, 13598650), (50, 7887217), (58, 6799325), (65, 6067090), (130, 3033545), (145, 2719730), (290, 1359865), (325, 1213418), (377, 1046050), (650, 606709), (725, 543946), (754, 523025), (1450, 271973), (1885, 209210), (3770, 104605), (9425, 41842), (18850, 20921)]