20172117860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1\times {\mathrm{59083}}^1$

素因数の和:59532

約数の個数: 48

約数和(自身を含む): 43456518336

約数和(自身を除く): 23284400476

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 397, 430, 794, 860, 1588, 1985, 3970, 7940, 17071, 34142, 59083, 68284, 85355, 118166, 170710, 236332, 295415, 341420, 590830, 1181660, 2540569, 5081138, 10162276, 12702845, 23455951, 25405690, 46911902, 50811380, 93823804, 117279755, 234559510, 469119020, 1008605893, 2017211786, 4034423572, 5043029465, 10086058930, 20172117860]

約数ペア:

[(1, 20172117860), (2, 10086058930), (4, 5043029465), (5, 4034423572), (10, 2017211786), (20, 1008605893), (43, 469119020), (86, 234559510), (172, 117279755), (215, 93823804), (397, 50811380), (430, 46911902), (794, 25405690), (860, 23455951), (1588, 12702845), (1985, 10162276), (3970, 5081138), (7940, 2540569), (17071, 1181660), (34142, 590830), (59083, 341420), (68284, 295415), (85355, 236332), (118166, 170710)]