13900000

素因数分解:

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

素因数の和:174

約数の個数: 72

約数和(自身を含む): 34450920

約数和(自身を除く): 20550920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 139, 160, 200, 250, 278, 400, 500, 556, 625, 695, 800, 1000, 1112, 1250, 1390, 2000, 2224, 2500, 2780, 3125, 3475, 4000, 4448, 5000, 5560, 6250, 6950, 10000, 11120, 12500, 13900, 17375, 20000, 22240, 25000, 27800, 34750, 50000, 55600, 69500, 86875, 100000, 111200, 139000, 173750, 278000, 347500, 434375, 556000, 695000, 868750, 1390000, 1737500, 2780000, 3475000, 6950000, 13900000]

約数ペア:

[(1, 13900000), (2, 6950000), (4, 3475000), (5, 2780000), (8, 1737500), (10, 1390000), (16, 868750), (20, 695000), (25, 556000), (32, 434375), (40, 347500), (50, 278000), (80, 173750), (100, 139000), (125, 111200), (139, 100000), (160, 86875), (200, 69500), (250, 55600), (278, 50000), (400, 34750), (500, 27800), (556, 25000), (625, 22240), (695, 20000), (800, 17375), (1000, 13900), (1112, 12500), (1250, 11120), (1390, 10000), (2000, 6950), (2224, 6250), (2500, 5560), (2780, 5000), (3125, 4448), (3475, 4000)]