3475000

素因数分解:

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

素因数の和:170

約数の個数: 48

約数和(自身を含む): 8202600

約数和(自身を除く): 4727600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 139, 200, 250, 278, 500, 556, 625, 695, 1000, 1112, 1250, 1390, 2500, 2780, 3125, 3475, 5000, 5560, 6250, 6950, 12500, 13900, 17375, 25000, 27800, 34750, 69500, 86875, 139000, 173750, 347500, 434375, 695000, 868750, 1737500, 3475000]

約数ペア:

[(1, 3475000), (2, 1737500), (4, 868750), (5, 695000), (8, 434375), (10, 347500), (20, 173750), (25, 139000), (40, 86875), (50, 69500), (100, 34750), (125, 27800), (139, 25000), (200, 17375), (250, 13900), (278, 12500), (500, 6950), (556, 6250), (625, 5560), (695, 5000), (1000, 3475), (1112, 3125), (1250, 2780), (1390, 2500)]