821570989820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{18311}}^1\times {\mathrm{320483}}^1$

素因数の和:338810

約数の個数: 48

約数和(自身を含む): 1971884210688

約数和(自身を除く): 1150313220868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 18311, 36622, 73244, 91555, 128177, 183110, 256354, 320483, 366220, 512708, 640885, 640966, 1281770, 1281932, 1602415, 2243381, 2563540, 3204830, 4486762, 6409660, 8973524, 11216905, 22433810, 44867620, 5868364213, 11736728426, 23473456852, 29341821065, 41078549491, 58683642130, 82157098982, 117367284260, 164314197964, 205392747455, 410785494910, 821570989820]

約数ペア:

[(1, 821570989820), (2, 410785494910), (4, 205392747455), (5, 164314197964), (7, 117367284260), (10, 82157098982), (14, 58683642130), (20, 41078549491), (28, 29341821065), (35, 23473456852), (70, 11736728426), (140, 5868364213), (18311, 44867620), (36622, 22433810), (73244, 11216905), (91555, 8973524), (128177, 6409660), (183110, 4486762), (256354, 3204830), (320483, 2563540), (366220, 2243381), (512708, 1602415), (640885, 1281932), (640966, 1281770)]