215501715

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^2$

素因数の和:163

約数の個数: 120

約数和(自身を含む): 461404944

約数和(自身を除く): 245903229

約数列:

[1, 3, 5, 9, 11, 13, 15, 27, 33, 39, 45, 55, 61, 65, 81, 99, 117, 135, 143, 165, 183, 195, 297, 305, 351, 405, 429, 495, 549, 585, 671, 715, 793, 891, 915, 1053, 1287, 1485, 1647, 1755, 2013, 2145, 2379, 2745, 3355, 3721, 3861, 3965, 4455, 4941, 5265, 6039, 6435, 7137, 8235, 8723, 10065, 11163, 11583, 11895, 18117, 18605, 19305, 21411, 24705, 26169, 30195, 33489, 35685, 40931, 43615, 48373, 54351, 55815, 57915, 64233, 78507, 90585, 100467, 107055, 122793, 130845, 145119, 167445, 204655, 235521, 241865, 271755, 301401, 321165, 368379, 392535, 435357, 502335, 532103, 613965, 706563, 725595, 1105137, 1177605, 1306071, 1507005, 1596309, 1841895, 2176785, 2660515, 3315411, 3532815, 3918213, 4788927, 5525685, 6530355, 7981545, 14366781, 16577055, 19591065, 23944635, 43100343, 71833905, 215501715]

約数ペア:

[(1, 215501715), (3, 71833905), (5, 43100343), (9, 23944635), (11, 19591065), (13, 16577055), (15, 14366781), (27, 7981545), (33, 6530355), (39, 5525685), (45, 4788927), (55, 3918213), (61, 3532815), (65, 3315411), (81, 2660515), (99, 2176785), (117, 1841895), (135, 1596309), (143, 1507005), (165, 1306071), (183, 1177605), (195, 1105137), (297, 725595), (305, 706563), (351, 613965), (405, 532103), (429, 502335), (495, 435357), (549, 392535), (585, 368379), (671, 321165), (715, 301401), (793, 271755), (891, 241865), (915, 235521), (1053, 204655), (1287, 167445), (1485, 145119), (1647, 130845), (1755, 122793), (2013, 107055), (2145, 100467), (2379, 90585), (2745, 78507), (3355, 64233), (3721, 57915), (3861, 55815), (3965, 54351), (4455, 48373), (4941, 43615), (5265, 40931), (6039, 35685), (6435, 33489), (7137, 30195), (8235, 26169), (8723, 24705), (10065, 21411), (11163, 19305), (11583, 18605), (11895, 18117)]