78983320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{787}}^1$

素因数の和:1004

約数の個数: 64

約数和(自身を含む): 192618720

約数和(自身を除く): 113635400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 193, 260, 386, 520, 772, 787, 965, 1544, 1574, 1930, 2509, 3148, 3860, 3935, 5018, 6296, 7720, 7870, 10036, 10231, 12545, 15740, 20072, 20462, 25090, 31480, 40924, 50180, 51155, 81848, 100360, 102310, 151891, 204620, 303782, 409240, 607564, 759455, 1215128, 1518910, 1974583, 3037820, 3949166, 6075640, 7898332, 9872915, 15796664, 19745830, 39491660, 78983320]

約数ペア:

[(1, 78983320), (2, 39491660), (4, 19745830), (5, 15796664), (8, 9872915), (10, 7898332), (13, 6075640), (20, 3949166), (26, 3037820), (40, 1974583), (52, 1518910), (65, 1215128), (104, 759455), (130, 607564), (193, 409240), (260, 303782), (386, 204620), (520, 151891), (772, 102310), (787, 100360), (965, 81848), (1544, 51155), (1574, 50180), (1930, 40924), (2509, 31480), (3148, 25090), (3860, 20462), (3935, 20072), (5018, 15740), (6296, 12545), (7720, 10231), (7870, 10036)]