319390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2$

素因数の和:108

約数の個数: 24

約数和(自身を含む): 620280

約数和(自身を除く): 300890

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 410, 779, 1558, 1681, 3362, 3895, 7790, 8405, 16810, 31939, 63878, 159695, 319390]

約数ペア:

[(1, 319390), (2, 159695), (5, 63878), (10, 31939), (19, 16810), (38, 8405), (41, 7790), (82, 3895), (95, 3362), (190, 1681), (205, 1558), (410, 779)]