81431569280

素因数分解:

$2^7\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1235309}}^1$

素因数の和:1235431

約数の個数: 64

約数和(自身を含む): 196562527200

約数和(自身を除く): 115130957920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 160, 206, 320, 412, 515, 640, 824, 1030, 1648, 2060, 3296, 4120, 6592, 8240, 13184, 16480, 32960, 65920, 1235309, 2470618, 4941236, 6176545, 9882472, 12353090, 19764944, 24706180, 39529888, 49412360, 79059776, 98824720, 127236827, 158119552, 197649440, 254473654, 395298880, 508947308, 636184135, 790597760, 1017894616, 1272368270, 2035789232, 2544736540, 4071578464, 5089473080, 8143156928, 10178946160, 16286313856, 20357892320, 40715784640, 81431569280]

約数ペア:

[(1, 81431569280), (2, 40715784640), (4, 20357892320), (5, 16286313856), (8, 10178946160), (10, 8143156928), (16, 5089473080), (20, 4071578464), (32, 2544736540), (40, 2035789232), (64, 1272368270), (80, 1017894616), (103, 790597760), (128, 636184135), (160, 508947308), (206, 395298880), (320, 254473654), (412, 197649440), (515, 158119552), (640, 127236827), (824, 98824720), (1030, 79059776), (1648, 49412360), (2060, 39529888), (3296, 24706180), (4120, 19764944), (6592, 12353090), (8240, 9882472), (13184, 6176545), (16480, 4941236), (32960, 2470618), (65920, 1235309)]