82085720

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:468

約数の個数: 64

約数和(自身を含む): 189842400

約数和(自身を除く): 107756680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 109, 134, 218, 268, 281, 335, 436, 536, 545, 562, 670, 872, 1090, 1124, 1340, 1405, 2180, 2248, 2680, 2810, 4360, 5620, 7303, 11240, 14606, 18827, 29212, 30629, 36515, 37654, 58424, 61258, 73030, 75308, 94135, 122516, 146060, 150616, 153145, 188270, 245032, 292120, 306290, 376540, 612580, 753080, 1225160, 2052143, 4104286, 8208572, 10260715, 16417144, 20521430, 41042860, 82085720]

約数ペア:

[(1, 82085720), (2, 41042860), (4, 20521430), (5, 16417144), (8, 10260715), (10, 8208572), (20, 4104286), (40, 2052143), (67, 1225160), (109, 753080), (134, 612580), (218, 376540), (268, 306290), (281, 292120), (335, 245032), (436, 188270), (536, 153145), (545, 150616), (562, 146060), (670, 122516), (872, 94135), (1090, 75308), (1124, 73030), (1340, 61258), (1405, 58424), (2180, 37654), (2248, 36515), (2680, 30629), (2810, 29212), (4360, 18827), (5620, 14606), (7303, 11240)]