28206390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2417}}^1$

素因数の和:2816

約数の個数: 32

約数和(自身を含む): 67897440

約数和(自身を除く): 39691050

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 389, 778, 1167, 1945, 2334, 2417, 3890, 4834, 5835, 7251, 11670, 12085, 14502, 24170, 36255, 72510, 940213, 1880426, 2820639, 4701065, 5641278, 9402130, 14103195, 28206390]

約数ペア:

[(1, 28206390), (2, 14103195), (3, 9402130), (5, 5641278), (6, 4701065), (10, 2820639), (15, 1880426), (30, 940213), (389, 72510), (778, 36255), (1167, 24170), (1945, 14502), (2334, 12085), (2417, 11670), (3890, 7251), (4834, 5835)]