12783122020

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{4665373}}^1$

素因数の和:4665519

約数の個数: 24

約数和(自身を含む): 27040507704

約数和(自身を除く): 14257385684

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 4665373, 9330746, 18661492, 23326865, 46653730, 93307460, 639156101, 1278312202, 2556624404, 3195780505, 6391561010, 12783122020]

約数ペア:

[(1, 12783122020), (2, 6391561010), (4, 3195780505), (5, 2556624404), (10, 1278312202), (20, 639156101), (137, 93307460), (274, 46653730), (548, 23326865), (685, 18661492), (1370, 9330746), (2740, 4665373)]