513320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{313}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 1186920

約数和(自身を除く): 673600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 313, 328, 410, 626, 820, 1252, 1565, 1640, 2504, 3130, 6260, 12520, 12833, 25666, 51332, 64165, 102664, 128330, 256660, 513320]

約数ペア:

[(1, 513320), (2, 256660), (4, 128330), (5, 102664), (8, 64165), (10, 51332), (20, 25666), (40, 12833), (41, 12520), (82, 6260), (164, 3130), (205, 2504), (313, 1640), (328, 1565), (410, 1252), (626, 820)]