9980200

素因数分解:

$2^3\times 5^2\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 23436000

約数和(自身を除く): 13455800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 139, 200, 278, 359, 556, 695, 718, 1112, 1390, 1436, 1795, 2780, 2872, 3475, 3590, 5560, 6950, 7180, 8975, 13900, 14360, 17950, 27800, 35900, 49901, 71800, 99802, 199604, 249505, 399208, 499010, 998020, 1247525, 1996040, 2495050, 4990100, 9980200]

約数ペア:

[(1, 9980200), (2, 4990100), (4, 2495050), (5, 1996040), (8, 1247525), (10, 998020), (20, 499010), (25, 399208), (40, 249505), (50, 199604), (100, 99802), (139, 71800), (200, 49901), (278, 35900), (359, 27800), (556, 17950), (695, 14360), (718, 13900), (1112, 8975), (1390, 7180), (1436, 6950), (1795, 5560), (2780, 3590), (2872, 3475)]