20187288

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:453

約数の個数: 96

約数和(自身を含む): 60652800

約数和(自身を除く): 40465512

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 44, 66, 71, 72, 88, 99, 132, 142, 198, 213, 264, 284, 359, 396, 426, 568, 639, 718, 781, 792, 852, 1077, 1278, 1436, 1562, 1704, 2154, 2343, 2556, 2872, 3124, 3231, 3949, 4308, 4686, 5112, 6248, 6462, 7029, 7898, 8616, 9372, 11847, 12924, 14058, 15796, 18744, 23694, 25489, 25848, 28116, 31592, 35541, 47388, 50978, 56232, 71082, 76467, 94776, 101956, 142164, 152934, 203912, 229401, 280379, 284328, 305868, 458802, 560758, 611736, 841137, 917604, 1121516, 1682274, 1835208, 2243032, 2523411, 3364548, 5046822, 6729096, 10093644, 20187288]

約数ペア:

[(1, 20187288), (2, 10093644), (3, 6729096), (4, 5046822), (6, 3364548), (8, 2523411), (9, 2243032), (11, 1835208), (12, 1682274), (18, 1121516), (22, 917604), (24, 841137), (33, 611736), (36, 560758), (44, 458802), (66, 305868), (71, 284328), (72, 280379), (88, 229401), (99, 203912), (132, 152934), (142, 142164), (198, 101956), (213, 94776), (264, 76467), (284, 71082), (359, 56232), (396, 50978), (426, 47388), (568, 35541), (639, 31592), (718, 28116), (781, 25848), (792, 25489), (852, 23694), (1077, 18744), (1278, 15796), (1436, 14058), (1562, 12924), (1704, 11847), (2154, 9372), (2343, 8616), (2556, 7898), (2872, 7029), (3124, 6462), (3231, 6248), (3949, 5112), (4308, 4686)]