27800000

素因数分解:

$2^6\times 5^5\times {\mathrm{139}}^1$

素因数の和:176

約数の個数: 84

約数和(自身を含む): 69448680

約数和(自身を除く): 41648680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 139, 160, 200, 250, 278, 320, 400, 500, 556, 625, 695, 800, 1000, 1112, 1250, 1390, 1600, 2000, 2224, 2500, 2780, 3125, 3475, 4000, 4448, 5000, 5560, 6250, 6950, 8000, 8896, 10000, 11120, 12500, 13900, 17375, 20000, 22240, 25000, 27800, 34750, 40000, 44480, 50000, 55600, 69500, 86875, 100000, 111200, 139000, 173750, 200000, 222400, 278000, 347500, 434375, 556000, 695000, 868750, 1112000, 1390000, 1737500, 2780000, 3475000, 5560000, 6950000, 13900000, 27800000]

約数ペア:

[(1, 27800000), (2, 13900000), (4, 6950000), (5, 5560000), (8, 3475000), (10, 2780000), (16, 1737500), (20, 1390000), (25, 1112000), (32, 868750), (40, 695000), (50, 556000), (64, 434375), (80, 347500), (100, 278000), (125, 222400), (139, 200000), (160, 173750), (200, 139000), (250, 111200), (278, 100000), (320, 86875), (400, 69500), (500, 55600), (556, 50000), (625, 44480), (695, 40000), (800, 34750), (1000, 27800), (1112, 25000), (1250, 22240), (1390, 20000), (1600, 17375), (2000, 13900), (2224, 12500), (2500, 11120), (2780, 10000), (3125, 8896), (3475, 8000), (4000, 6950), (4448, 6250), (5000, 5560)]