28103667505

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{81071}}^1$

素因数の和:81225

約数の個数: 32

約数和(自身を含む): 36774259200

約数和(自身を除く): 8670591695

約数列:

[1, 5, 19, 41, 89, 95, 205, 445, 779, 1691, 3649, 3895, 8455, 18245, 69331, 81071, 346655, 405355, 1540349, 3323911, 7215319, 7701745, 16619555, 36076595, 63154309, 137091061, 295828079, 315771545, 685455305, 1479140395, 5620733501, 28103667505]

約数ペア:

[(1, 28103667505), (5, 5620733501), (19, 1479140395), (41, 685455305), (89, 315771545), (95, 295828079), (205, 137091061), (445, 63154309), (779, 36076595), (1691, 16619555), (3649, 7701745), (3895, 7215319), (8455, 3323911), (18245, 1540349), (69331, 405355), (81071, 346655)]