20187089020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{56041}}^1$

素因数の和:56171

約数の個数: 96

約数和(自身を含む): 50615341056

約数和(自身を除く): 30428252036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 83, 124, 140, 155, 166, 217, 310, 332, 415, 434, 581, 620, 830, 868, 1085, 1162, 1660, 2170, 2324, 2573, 2905, 4340, 5146, 5810, 10292, 11620, 12865, 18011, 25730, 36022, 51460, 56041, 72044, 90055, 112082, 180110, 224164, 280205, 360220, 392287, 560410, 784574, 1120820, 1569148, 1737271, 1961435, 3474542, 3922870, 4651403, 6949084, 7845740, 8686355, 9302806, 12160897, 17372710, 18605612, 23257015, 24321794, 32559821, 34745420, 46514030, 48643588, 60804485, 65119642, 93028060, 121608970, 130239284, 144193493, 162799105, 243217940, 288386986, 325598210, 576773972, 651196420, 720967465, 1009354451, 1441934930, 2018708902, 2883869860, 4037417804, 5046772255, 10093544510, 20187089020]

約数ペア:

[(1, 20187089020), (2, 10093544510), (4, 5046772255), (5, 4037417804), (7, 2883869860), (10, 2018708902), (14, 1441934930), (20, 1009354451), (28, 720967465), (31, 651196420), (35, 576773972), (62, 325598210), (70, 288386986), (83, 243217940), (124, 162799105), (140, 144193493), (155, 130239284), (166, 121608970), (217, 93028060), (310, 65119642), (332, 60804485), (415, 48643588), (434, 46514030), (581, 34745420), (620, 32559821), (830, 24321794), (868, 23257015), (1085, 18605612), (1162, 17372710), (1660, 12160897), (2170, 9302806), (2324, 8686355), (2573, 7845740), (2905, 6949084), (4340, 4651403), (5146, 3922870), (5810, 3474542), (10292, 1961435), (11620, 1737271), (12865, 1569148), (18011, 1120820), (25730, 784574), (36022, 560410), (51460, 392287), (56041, 360220), (72044, 280205), (90055, 224164), (112082, 180110)]