199968920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:313

約数の個数: 128

約数和(自身を含む): 503712000

約数和(自身を除く): 303743080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 38, 40, 43, 58, 76, 86, 95, 116, 145, 152, 172, 190, 211, 215, 232, 290, 344, 380, 422, 430, 551, 580, 760, 817, 844, 860, 1055, 1102, 1160, 1247, 1634, 1688, 1720, 2110, 2204, 2494, 2755, 3268, 4009, 4085, 4220, 4408, 4988, 5510, 6119, 6235, 6536, 8018, 8170, 8440, 9073, 9976, 11020, 12238, 12470, 16036, 16340, 18146, 20045, 22040, 23693, 24476, 24940, 30595, 32072, 32680, 36292, 40090, 45365, 47386, 48952, 49880, 61190, 72584, 80180, 90730, 94772, 116261, 118465, 122380, 160360, 172387, 181460, 189544, 232522, 236930, 244760, 263117, 344774, 362920, 465044, 473860, 526234, 581305, 689548, 861935, 930088, 947720, 1052468, 1162610, 1315585, 1379096, 1723870, 2104936, 2325220, 2631170, 3447740, 4650440, 4999223, 5262340, 6895480, 9998446, 10524680, 19996892, 24996115, 39993784, 49992230, 99984460, 199968920]

約数ペア:

[(1, 199968920), (2, 99984460), (4, 49992230), (5, 39993784), (8, 24996115), (10, 19996892), (19, 10524680), (20, 9998446), (29, 6895480), (38, 5262340), (40, 4999223), (43, 4650440), (58, 3447740), (76, 2631170), (86, 2325220), (95, 2104936), (116, 1723870), (145, 1379096), (152, 1315585), (172, 1162610), (190, 1052468), (211, 947720), (215, 930088), (232, 861935), (290, 689548), (344, 581305), (380, 526234), (422, 473860), (430, 465044), (551, 362920), (580, 344774), (760, 263117), (817, 244760), (844, 236930), (860, 232522), (1055, 189544), (1102, 181460), (1160, 172387), (1247, 160360), (1634, 122380), (1688, 118465), (1720, 116261), (2110, 94772), (2204, 90730), (2494, 80180), (2755, 72584), (3268, 61190), (4009, 49880), (4085, 48952), (4220, 47386), (4408, 45365), (4988, 40090), (5510, 36292), (6119, 32680), (6235, 32072), (6536, 30595), (8018, 24940), (8170, 24476), (8440, 23693), (9073, 22040), (9976, 20045), (11020, 18146), (12238, 16340), (12470, 16036)]