201831320

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{12583}}^1$

素因数の和:12995

約数の個数: 32

約数和(自身を含む): 455289120

約数和(自身を除く): 253457800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 8020, 12583, 16040, 25166, 50332, 62915, 100664, 125830, 251660, 503320, 5045783, 10091566, 20183132, 25228915, 40366264, 50457830, 100915660, 201831320]

約数ペア:

[(1, 201831320), (2, 100915660), (4, 50457830), (5, 40366264), (8, 25228915), (10, 20183132), (20, 10091566), (40, 5045783), (401, 503320), (802, 251660), (1604, 125830), (2005, 100664), (3208, 62915), (4010, 50332), (8020, 25166), (12583, 16040)]