20180691220

素因数分解:

$2^2\times 5^1\times {\mathrm{727}}^1\times {\mathrm{1387943}}^1$

素因数の和:1388679

約数の個数: 24

約数和(自身を含む): 42437775744

約数和(自身を除く): 22257084524

約数列:

[1, 2, 4, 5, 10, 20, 727, 1454, 2908, 3635, 7270, 14540, 1387943, 2775886, 5551772, 6939715, 13879430, 27758860, 1009034561, 2018069122, 4036138244, 5045172805, 10090345610, 20180691220]

約数ペア:

[(1, 20180691220), (2, 10090345610), (4, 5045172805), (5, 4036138244), (10, 2018069122), (20, 1009034561), (727, 27758860), (1454, 13879430), (2908, 6939715), (3635, 5551772), (7270, 2775886), (14540, 1387943)]