1640200

素因数分解:

$2^3\times 5^2\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 3906000

約数和(自身を除く): 2265800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 59, 100, 118, 139, 200, 236, 278, 295, 472, 556, 590, 695, 1112, 1180, 1390, 1475, 2360, 2780, 2950, 3475, 5560, 5900, 6950, 8201, 11800, 13900, 16402, 27800, 32804, 41005, 65608, 82010, 164020, 205025, 328040, 410050, 820100, 1640200]

約数ペア:

[(1, 1640200), (2, 820100), (4, 410050), (5, 328040), (8, 205025), (10, 164020), (20, 82010), (25, 65608), (40, 41005), (50, 32804), (59, 27800), (100, 16402), (118, 13900), (139, 11800), (200, 8201), (236, 6950), (278, 5900), (295, 5560), (472, 3475), (556, 2950), (590, 2780), (695, 2360), (1112, 1475), (1180, 1390)]