19825780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{76253}}^1$

素因数の和:76275

約数の個数: 24

約数和(自身を含む): 44837352

約数和(自身を除く): 25011572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 76253, 152506, 305012, 381265, 762530, 991289, 1525060, 1982578, 3965156, 4956445, 9912890, 19825780]

約数ペア:

[(1, 19825780), (2, 9912890), (4, 4956445), (5, 3965156), (10, 1982578), (13, 1525060), (20, 991289), (26, 762530), (52, 381265), (65, 305012), (130, 152506), (260, 76253)]