20520122

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:255

約数の個数: 48

約数和(自身を含む): 38598120

約数和(自身を除く): 18077998

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 109, 113, 119, 218, 226, 238, 763, 791, 833, 1526, 1582, 1666, 1853, 1921, 3706, 3842, 5341, 5537, 10682, 11074, 12317, 12971, 13447, 24634, 25942, 26894, 86219, 90797, 94129, 172438, 181594, 188258, 209389, 418778, 603533, 1207066, 1465723, 2931446, 10260061, 20520122]

約数ペア:

[(1, 20520122), (2, 10260061), (7, 2931446), (14, 1465723), (17, 1207066), (34, 603533), (49, 418778), (98, 209389), (109, 188258), (113, 181594), (119, 172438), (218, 94129), (226, 90797), (238, 86219), (763, 26894), (791, 25942), (833, 24634), (1526, 13447), (1582, 12971), (1666, 12317), (1853, 11074), (1921, 10682), (3706, 5537), (3842, 5341)]