668318255

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 958003200

約数和(自身を除く): 289684945

約数列:

[1, 5, 11, 19, 43, 55, 95, 107, 139, 209, 215, 473, 535, 695, 817, 1045, 1177, 1529, 2033, 2365, 2641, 4085, 4601, 5885, 5977, 7645, 8987, 10165, 13205, 14873, 22363, 23005, 29051, 29885, 44935, 50611, 65747, 74365, 87419, 111815, 113563, 145255, 163603, 253055, 282587, 328735, 437095, 567815, 639539, 818015, 961609, 1249193, 1412935, 3108457, 3197695, 4808045, 6245965, 7034929, 12151241, 15542285, 35174645, 60756205, 133663651, 668318255]

約数ペア:

[(1, 668318255), (5, 133663651), (11, 60756205), (19, 35174645), (43, 15542285), (55, 12151241), (95, 7034929), (107, 6245965), (139, 4808045), (209, 3197695), (215, 3108457), (473, 1412935), (535, 1249193), (695, 961609), (817, 818015), (1045, 639539), (1177, 567815), (1529, 437095), (2033, 328735), (2365, 282587), (2641, 253055), (4085, 163603), (4601, 145255), (5885, 113563), (5977, 111815), (7645, 87419), (8987, 74365), (10165, 65747), (13205, 50611), (14873, 44935), (22363, 29885), (23005, 29051)]