20121424520

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{439}}^1\times {\mathrm{4049}}^1$

素因数の和:4782

約数の個数: 64

約数和(自身を含む): 45547920000

約数和(自身を除く): 25426495480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 439, 566, 878, 1132, 1415, 1756, 2195, 2264, 2830, 3512, 4049, 4390, 5660, 8098, 8780, 11320, 16196, 17560, 20245, 32392, 40490, 80980, 124237, 161960, 248474, 496948, 621185, 993896, 1145867, 1242370, 1777511, 2291734, 2484740, 3555022, 4583468, 4969480, 5729335, 7110044, 8887555, 9166936, 11458670, 14220088, 17775110, 22917340, 35550220, 45834680, 71100440, 503035613, 1006071226, 2012142452, 2515178065, 4024284904, 5030356130, 10060712260, 20121424520]

約数ペア:

[(1, 20121424520), (2, 10060712260), (4, 5030356130), (5, 4024284904), (8, 2515178065), (10, 2012142452), (20, 1006071226), (40, 503035613), (283, 71100440), (439, 45834680), (566, 35550220), (878, 22917340), (1132, 17775110), (1415, 14220088), (1756, 11458670), (2195, 9166936), (2264, 8887555), (2830, 7110044), (3512, 5729335), (4049, 4969480), (4390, 4583468), (5660, 3555022), (8098, 2484740), (8780, 2291734), (11320, 1777511), (16196, 1242370), (17560, 1145867), (20245, 993896), (32392, 621185), (40490, 496948), (80980, 248474), (124237, 161960)]