2020109525

素因数分解:

$5^2\times 7^2\times {\mathrm{137}}^1\times {\mathrm{12037}}^1$

素因数の和:12198

約数の個数: 36

約数和(自身を含む): 2935418148

約数和(自身を除く): 915308623

約数列:

[1, 5, 7, 25, 35, 49, 137, 175, 245, 685, 959, 1225, 3425, 4795, 6713, 12037, 23975, 33565, 60185, 84259, 167825, 300925, 421295, 589813, 1649069, 2106475, 2949065, 8245345, 11543483, 14745325, 41226725, 57717415, 80804381, 288587075, 404021905, 2020109525]

約数ペア:

[(1, 2020109525), (5, 404021905), (7, 288587075), (25, 80804381), (35, 57717415), (49, 41226725), (137, 14745325), (175, 11543483), (245, 8245345), (685, 2949065), (959, 2106475), (1225, 1649069), (3425, 589813), (4795, 421295), (6713, 300925), (12037, 167825), (23975, 84259), (33565, 60185)]