19404400

素因数分解:

$2^4\times 5^2\times {\mathrm{139}}^1\times {\mathrm{349}}^1$

素因数の和:506

約数の個数: 60

約数和(自身を含む): 47089000

約数和(自身を除く): 27684600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 139, 200, 278, 349, 400, 556, 695, 698, 1112, 1390, 1396, 1745, 2224, 2780, 2792, 3475, 3490, 5560, 5584, 6950, 6980, 8725, 11120, 13900, 13960, 17450, 27800, 27920, 34900, 48511, 55600, 69800, 97022, 139600, 194044, 242555, 388088, 485110, 776176, 970220, 1212775, 1940440, 2425550, 3880880, 4851100, 9702200, 19404400]

約数ペア:

[(1, 19404400), (2, 9702200), (4, 4851100), (5, 3880880), (8, 2425550), (10, 1940440), (16, 1212775), (20, 970220), (25, 776176), (40, 485110), (50, 388088), (80, 242555), (100, 194044), (139, 139600), (200, 97022), (278, 69800), (349, 55600), (400, 48511), (556, 34900), (695, 27920), (698, 27800), (1112, 17450), (1390, 13960), (1396, 13900), (1745, 11120), (2224, 8725), (2780, 6980), (2792, 6950), (3475, 5584), (3490, 5560)]