1814800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{349}}^1$

素因数の和:380

約数の個数: 60

約数和(自身を含む): 4708900

約数和(自身を除く): 2894100

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 349, 400, 520, 650, 698, 1040, 1300, 1396, 1745, 2600, 2792, 3490, 4537, 5200, 5584, 6980, 8725, 9074, 13960, 17450, 18148, 22685, 27920, 34900, 36296, 45370, 69800, 72592, 90740, 113425, 139600, 181480, 226850, 362960, 453700, 907400, 1814800]

約数ペア:

[(1, 1814800), (2, 907400), (4, 453700), (5, 362960), (8, 226850), (10, 181480), (13, 139600), (16, 113425), (20, 90740), (25, 72592), (26, 69800), (40, 45370), (50, 36296), (52, 34900), (65, 27920), (80, 22685), (100, 18148), (104, 17450), (130, 13960), (200, 9074), (208, 8725), (260, 6980), (325, 5584), (349, 5200), (400, 4537), (520, 3490), (650, 2792), (698, 2600), (1040, 1745), (1300, 1396)]