1965640

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{313}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 4465080

約数和(自身を除く): 2499440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 313, 314, 626, 628, 785, 1252, 1256, 1565, 1570, 2504, 3130, 3140, 6260, 6280, 12520, 49141, 98282, 196564, 245705, 393128, 491410, 982820, 1965640]

約数ペア:

[(1, 1965640), (2, 982820), (4, 491410), (5, 393128), (8, 245705), (10, 196564), (20, 98282), (40, 49141), (157, 12520), (313, 6280), (314, 6260), (626, 3140), (628, 3130), (785, 2504), (1252, 1570), (1256, 1565)]