20692080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{991}}^1$

素因数の和:1039

約数の個数: 120

約数和(自身を含む): 71959680

約数和(自身を除く): 51267600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 36, 40, 45, 48, 58, 60, 72, 80, 87, 90, 116, 120, 144, 145, 174, 180, 232, 240, 261, 290, 348, 360, 435, 464, 522, 580, 696, 720, 870, 991, 1044, 1160, 1305, 1392, 1740, 1982, 2088, 2320, 2610, 2973, 3480, 3964, 4176, 4955, 5220, 5946, 6960, 7928, 8919, 9910, 10440, 11892, 14865, 15856, 17838, 19820, 20880, 23784, 28739, 29730, 35676, 39640, 44595, 47568, 57478, 59460, 71352, 79280, 86217, 89190, 114956, 118920, 142704, 143695, 172434, 178380, 229912, 237840, 258651, 287390, 344868, 356760, 431085, 459824, 517302, 574780, 689736, 713520, 862170, 1034604, 1149560, 1293255, 1379472, 1724340, 2069208, 2299120, 2586510, 3448680, 4138416, 5173020, 6897360, 10346040, 20692080]

約数ペア:

[(1, 20692080), (2, 10346040), (3, 6897360), (4, 5173020), (5, 4138416), (6, 3448680), (8, 2586510), (9, 2299120), (10, 2069208), (12, 1724340), (15, 1379472), (16, 1293255), (18, 1149560), (20, 1034604), (24, 862170), (29, 713520), (30, 689736), (36, 574780), (40, 517302), (45, 459824), (48, 431085), (58, 356760), (60, 344868), (72, 287390), (80, 258651), (87, 237840), (90, 229912), (116, 178380), (120, 172434), (144, 143695), (145, 142704), (174, 118920), (180, 114956), (232, 89190), (240, 86217), (261, 79280), (290, 71352), (348, 59460), (360, 57478), (435, 47568), (464, 44595), (522, 39640), (580, 35676), (696, 29730), (720, 28739), (870, 23784), (991, 20880), (1044, 19820), (1160, 17838), (1305, 15856), (1392, 14865), (1740, 11892), (1982, 10440), (2088, 9910), (2320, 8919), (2610, 7928), (2973, 6960), (3480, 5946), (3964, 5220), (4176, 4955)]