8025320

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{641}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 18142920

約数和(自身を除く): 10117600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 641, 1252, 1282, 1565, 2504, 2564, 3130, 3205, 5128, 6260, 6410, 12520, 12820, 25640, 200633, 401266, 802532, 1003165, 1605064, 2006330, 4012660, 8025320]

約数ペア:

[(1, 8025320), (2, 4012660), (4, 2006330), (5, 1605064), (8, 1003165), (10, 802532), (20, 401266), (40, 200633), (313, 25640), (626, 12820), (641, 12520), (1252, 6410), (1282, 6260), (1565, 5128), (2504, 3205), (2564, 3130)]