20518330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1867}}^1$

素因数の和:2038

約数の個数: 32

約数和(自身を含む): 42500736

約数和(自身を除く): 21982406

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 157, 314, 785, 1099, 1570, 1867, 2198, 3734, 5495, 9335, 10990, 13069, 18670, 26138, 65345, 130690, 293119, 586238, 1465595, 2051833, 2931190, 4103666, 10259165, 20518330]

約数ペア:

[(1, 20518330), (2, 10259165), (5, 4103666), (7, 2931190), (10, 2051833), (14, 1465595), (35, 586238), (70, 293119), (157, 130690), (314, 65345), (785, 26138), (1099, 18670), (1570, 13069), (1867, 10990), (2198, 9335), (3734, 5495)]