20484700

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{2593}}^1$

素因数の和:2686

約数の個数: 36

約数和(自身を含む): 45031840

約数和(自身を除く): 24547140

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 1580, 1975, 2593, 3950, 5186, 7900, 10372, 12965, 25930, 51860, 64825, 129650, 204847, 259300, 409694, 819388, 1024235, 2048470, 4096940, 5121175, 10242350, 20484700]

約数ペア:

[(1, 20484700), (2, 10242350), (4, 5121175), (5, 4096940), (10, 2048470), (20, 1024235), (25, 819388), (50, 409694), (79, 259300), (100, 204847), (158, 129650), (316, 64825), (395, 51860), (790, 25930), (1580, 12965), (1975, 10372), (2593, 7900), (3950, 5186)]