20864688

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1153}}^1$

素因数の和:1206

約数の個数: 80

約数和(自身を含む): 60100320

約数和(自身を除く): 39235632

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 29, 39, 48, 52, 58, 78, 87, 104, 116, 156, 174, 208, 232, 312, 348, 377, 464, 624, 696, 754, 1131, 1153, 1392, 1508, 2262, 2306, 3016, 3459, 4524, 4612, 6032, 6918, 9048, 9224, 13836, 14989, 18096, 18448, 27672, 29978, 33437, 44967, 55344, 59956, 66874, 89934, 100311, 119912, 133748, 179868, 200622, 239824, 267496, 359736, 401244, 434681, 534992, 719472, 802488, 869362, 1304043, 1604976, 1738724, 2608086, 3477448, 5216172, 6954896, 10432344, 20864688]

約数ペア:

[(1, 20864688), (2, 10432344), (3, 6954896), (4, 5216172), (6, 3477448), (8, 2608086), (12, 1738724), (13, 1604976), (16, 1304043), (24, 869362), (26, 802488), (29, 719472), (39, 534992), (48, 434681), (52, 401244), (58, 359736), (78, 267496), (87, 239824), (104, 200622), (116, 179868), (156, 133748), (174, 119912), (208, 100311), (232, 89934), (312, 66874), (348, 59956), (377, 55344), (464, 44967), (624, 33437), (696, 29978), (754, 27672), (1131, 18448), (1153, 18096), (1392, 14989), (1508, 13836), (2262, 9224), (2306, 9048), (3016, 6918), (3459, 6032), (4524, 4612)]