290411390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{8539}}^1$

素因数の和:8744

約数の個数: 32

約数和(自身を含む): 553392000

約数和(自身を除く): 262980610

約数列:

[1, 2, 5, 10, 19, 38, 95, 179, 190, 358, 895, 1790, 3401, 6802, 8539, 17005, 17078, 34010, 42695, 85390, 162241, 324482, 811205, 1528481, 1622410, 3056962, 7642405, 15284810, 29041139, 58082278, 145205695, 290411390]

約数ペア:

[(1, 290411390), (2, 145205695), (5, 58082278), (10, 29041139), (19, 15284810), (38, 7642405), (95, 3056962), (179, 1622410), (190, 1528481), (358, 811205), (895, 324482), (1790, 162241), (3401, 85390), (6802, 42695), (8539, 34010), (17005, 17078)]