81231950

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{421}}^1$

素因数の和:677

約数の個数: 48

約数和(自身を含む): 161065584

約数和(自身を除く): 79833634

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 227, 421, 425, 454, 842, 850, 1135, 2105, 2270, 3859, 4210, 5675, 7157, 7718, 10525, 11350, 14314, 19295, 21050, 35785, 38590, 71570, 95567, 96475, 178925, 191134, 192950, 357850, 477835, 955670, 1624639, 2389175, 3249278, 4778350, 8123195, 16246390, 40615975, 81231950]

約数ペア:

[(1, 81231950), (2, 40615975), (5, 16246390), (10, 8123195), (17, 4778350), (25, 3249278), (34, 2389175), (50, 1624639), (85, 955670), (170, 477835), (227, 357850), (421, 192950), (425, 191134), (454, 178925), (842, 96475), (850, 95567), (1135, 71570), (2105, 38590), (2270, 35785), (3859, 21050), (4210, 19295), (5675, 14314), (7157, 11350), (7718, 10525)]