161138900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{123953}}^1$

素因数の和:123980

約数の個数: 36

約数和(自身を含む): 376572252

約数和(自身を除く): 215433352

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 123953, 247906, 495812, 619765, 1239530, 1611389, 2479060, 3098825, 3222778, 6197650, 6445556, 8056945, 12395300, 16113890, 32227780, 40284725, 80569450, 161138900]

約数ペア:

[(1, 161138900), (2, 80569450), (4, 40284725), (5, 32227780), (10, 16113890), (13, 12395300), (20, 8056945), (25, 6445556), (26, 6197650), (50, 3222778), (52, 3098825), (65, 2479060), (100, 1611389), (130, 1239530), (260, 619765), (325, 495812), (650, 247906), (1300, 123953)]