20199571425

素因数分解:

$3^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21089}}^1$

素因数の和:21165

約数の個数: 120

約数和(自身を含む): 41769335520

約数和(自身を除く): 21569764095

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 43, 45, 55, 75, 81, 99, 129, 135, 165, 215, 225, 275, 297, 387, 405, 473, 495, 645, 675, 825, 891, 1075, 1161, 1419, 1485, 1935, 2025, 2365, 2475, 3225, 3483, 4257, 4455, 5805, 7095, 7425, 9675, 11825, 12771, 17415, 21089, 21285, 22275, 29025, 35475, 38313, 63267, 63855, 87075, 105445, 106425, 189801, 191565, 231979, 316335, 319275, 527225, 569403, 695937, 906827, 949005, 957825, 1159895, 1581675, 1708209, 2087811, 2720481, 2847015, 3479685, 4534135, 4745025, 5799475, 6263433, 8161443, 8541045, 9975097, 10439055, 13602405, 14235075, 17398425, 18790299, 22670675, 24484329, 29925291, 31317165, 40807215, 42705225, 49875485, 52195275, 68012025, 73452987, 89775873, 93951495, 122421645, 149626455, 156585825, 204036075, 249377425, 269327619, 367264935, 448879365, 469757475, 612108225, 748132275, 807982857, 1346638095, 1836324675, 2244396825, 4039914285, 6733190475, 20199571425]

約数ペア:

[(1, 20199571425), (3, 6733190475), (5, 4039914285), (9, 2244396825), (11, 1836324675), (15, 1346638095), (25, 807982857), (27, 748132275), (33, 612108225), (43, 469757475), (45, 448879365), (55, 367264935), (75, 269327619), (81, 249377425), (99, 204036075), (129, 156585825), (135, 149626455), (165, 122421645), (215, 93951495), (225, 89775873), (275, 73452987), (297, 68012025), (387, 52195275), (405, 49875485), (473, 42705225), (495, 40807215), (645, 31317165), (675, 29925291), (825, 24484329), (891, 22670675), (1075, 18790299), (1161, 17398425), (1419, 14235075), (1485, 13602405), (1935, 10439055), (2025, 9975097), (2365, 8541045), (2475, 8161443), (3225, 6263433), (3483, 5799475), (4257, 4745025), (4455, 4534135), (5805, 3479685), (7095, 2847015), (7425, 2720481), (9675, 2087811), (11825, 1708209), (12771, 1581675), (17415, 1159895), (21089, 957825), (21285, 949005), (22275, 906827), (29025, 695937), (35475, 569403), (38313, 527225), (63267, 319275), (63855, 316335), (87075, 231979), (105445, 191565), (106425, 189801)]