138801620

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{21893}}^1$

素因数の和:22219

約数の個数: 24

約数和(自身を含む): 292416264

約数和(自身を除く): 153614644

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 3170, 6340, 21893, 43786, 87572, 109465, 218930, 437860, 6940081, 13880162, 27760324, 34700405, 69400810, 138801620]

約数ペア:

[(1, 138801620), (2, 69400810), (4, 34700405), (5, 27760324), (10, 13880162), (20, 6940081), (317, 437860), (634, 218930), (1268, 109465), (1585, 87572), (3170, 43786), (6340, 21893)]