900420

素因数分解:

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

素因数の和:404

約数の個数: 48

約数和(自身を含む): 2587200

約数和(自身を除く): 1686780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 349, 430, 516, 645, 698, 860, 1047, 1290, 1396, 1745, 2094, 2580, 3490, 4188, 5235, 6980, 10470, 15007, 20940, 30014, 45021, 60028, 75035, 90042, 150070, 180084, 225105, 300140, 450210, 900420]

約数ペア:

[(1, 900420), (2, 450210), (3, 300140), (4, 225105), (5, 180084), (6, 150070), (10, 90042), (12, 75035), (15, 60028), (20, 45021), (30, 30014), (43, 20940), (60, 15007), (86, 10470), (129, 6980), (172, 5235), (215, 4188), (258, 3490), (349, 2580), (430, 2094), (516, 1745), (645, 1396), (698, 1290), (860, 1047)]