128012820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{487}}^1$

素因数の和:849

約数の個数: 96

約数和(自身を含む): 387948288

約数和(自身を除く): 259935468

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 337, 390, 487, 674, 780, 974, 1011, 1348, 1461, 1685, 1948, 2022, 2435, 2922, 3370, 4044, 4381, 4870, 5055, 5844, 6331, 6740, 7305, 8762, 9740, 10110, 12662, 13143, 14610, 17524, 18993, 20220, 21905, 25324, 26286, 29220, 31655, 37986, 43810, 52572, 63310, 65715, 75972, 87620, 94965, 126620, 131430, 164119, 189930, 262860, 328238, 379860, 492357, 656476, 820595, 984714, 1641190, 1969428, 2133547, 2461785, 3282380, 4267094, 4923570, 6400641, 8534188, 9847140, 10667735, 12801282, 21335470, 25602564, 32003205, 42670940, 64006410, 128012820]

約数ペア:

[(1, 128012820), (2, 64006410), (3, 42670940), (4, 32003205), (5, 25602564), (6, 21335470), (10, 12801282), (12, 10667735), (13, 9847140), (15, 8534188), (20, 6400641), (26, 4923570), (30, 4267094), (39, 3282380), (52, 2461785), (60, 2133547), (65, 1969428), (78, 1641190), (130, 984714), (156, 820595), (195, 656476), (260, 492357), (337, 379860), (390, 328238), (487, 262860), (674, 189930), (780, 164119), (974, 131430), (1011, 126620), (1348, 94965), (1461, 87620), (1685, 75972), (1948, 65715), (2022, 63310), (2435, 52572), (2922, 43810), (3370, 37986), (4044, 31655), (4381, 29220), (4870, 26286), (5055, 25324), (5844, 21905), (6331, 20220), (6740, 18993), (7305, 17524), (8762, 14610), (9740, 13143), (10110, 12662)]