68556290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{21491}}^1$

素因数の和:21538

約数の個数: 32

約数和(自身を含む): 139268160

約数和(自身を除く): 70711870

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 145, 290, 319, 638, 1595, 3190, 21491, 42982, 107455, 214910, 236401, 472802, 623239, 1182005, 1246478, 2364010, 3116195, 6232390, 6855629, 13711258, 34278145, 68556290]

約数ペア:

[(1, 68556290), (2, 34278145), (5, 13711258), (10, 6855629), (11, 6232390), (22, 3116195), (29, 2364010), (55, 1246478), (58, 1182005), (110, 623239), (145, 472802), (290, 236401), (319, 214910), (638, 107455), (1595, 42982), (3190, 21491)]