1800840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 5544000

約数和(自身を除く): 3743160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 349, 430, 516, 645, 698, 860, 1032, 1047, 1290, 1396, 1720, 1745, 2094, 2580, 2792, 3490, 4188, 5160, 5235, 6980, 8376, 10470, 13960, 15007, 20940, 30014, 41880, 45021, 60028, 75035, 90042, 120056, 150070, 180084, 225105, 300140, 360168, 450210, 600280, 900420, 1800840]

約数ペア:

[(1, 1800840), (2, 900420), (3, 600280), (4, 450210), (5, 360168), (6, 300140), (8, 225105), (10, 180084), (12, 150070), (15, 120056), (20, 90042), (24, 75035), (30, 60028), (40, 45021), (43, 41880), (60, 30014), (86, 20940), (120, 15007), (129, 13960), (172, 10470), (215, 8376), (258, 6980), (344, 5235), (349, 5160), (430, 4188), (516, 3490), (645, 2792), (698, 2580), (860, 2094), (1032, 1745), (1047, 1720), (1290, 1396)]