20620850

素因数分解:

$2^1\times 5^2\times {\mathrm{317}}^1\times {\mathrm{1301}}^1$

素因数の和:1630

約数の個数: 24

約数和(自身を含む): 38505348

約数和(自身を除く): 17884498

約数列:

[1, 2, 5, 10, 25, 50, 317, 634, 1301, 1585, 2602, 3170, 6505, 7925, 13010, 15850, 32525, 65050, 412417, 824834, 2062085, 4124170, 10310425, 20620850]

約数ペア:

[(1, 20620850), (2, 10310425), (5, 4124170), (10, 2062085), (25, 824834), (50, 412417), (317, 65050), (634, 32525), (1301, 15850), (1585, 13010), (2602, 7925), (3170, 6505)]