31545780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{75109}}^1$

素因数の和:75128

約数の個数: 48

約数和(自身を含む): 100947840

約数和(自身を除く): 69402060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 75109, 150218, 225327, 300436, 375545, 450654, 525763, 751090, 901308, 1051526, 1126635, 1502180, 1577289, 2103052, 2253270, 2628815, 3154578, 4506540, 5257630, 6309156, 7886445, 10515260, 15772890, 31545780]

約数ペア:

[(1, 31545780), (2, 15772890), (3, 10515260), (4, 7886445), (5, 6309156), (6, 5257630), (7, 4506540), (10, 3154578), (12, 2628815), (14, 2253270), (15, 2103052), (20, 1577289), (21, 1502180), (28, 1126635), (30, 1051526), (35, 901308), (42, 751090), (60, 525763), (70, 450654), (84, 375545), (105, 300436), (140, 225327), (210, 150218), (420, 75109)]