28131320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{100469}}^1$

素因数の和:100487

約数の個数: 32

約数和(自身を含む): 72338400

約数和(自身を除く): 44207080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 100469, 200938, 401876, 502345, 703283, 803752, 1004690, 1406566, 2009380, 2813132, 3516415, 4018760, 5626264, 7032830, 14065660, 28131320]

約数ペア:

[(1, 28131320), (2, 14065660), (4, 7032830), (5, 5626264), (7, 4018760), (8, 3516415), (10, 2813132), (14, 2009380), (20, 1406566), (28, 1004690), (35, 803752), (40, 703283), (56, 502345), (70, 401876), (140, 200938), (280, 100469)]