80728520

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{433}}^1$

素因数の和:582

約数の個数: 64

約数和(自身を含む): 187488000

約数和(自身を除く): 106759480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 79, 118, 158, 236, 295, 316, 395, 433, 472, 590, 632, 790, 866, 1180, 1580, 1732, 2165, 2360, 3160, 3464, 4330, 4661, 8660, 9322, 17320, 18644, 23305, 25547, 34207, 37288, 46610, 51094, 68414, 93220, 102188, 127735, 136828, 171035, 186440, 204376, 255470, 273656, 342070, 510940, 684140, 1021880, 1368280, 2018213, 4036426, 8072852, 10091065, 16145704, 20182130, 40364260, 80728520]

約数ペア:

[(1, 80728520), (2, 40364260), (4, 20182130), (5, 16145704), (8, 10091065), (10, 8072852), (20, 4036426), (40, 2018213), (59, 1368280), (79, 1021880), (118, 684140), (158, 510940), (236, 342070), (295, 273656), (316, 255470), (395, 204376), (433, 186440), (472, 171035), (590, 136828), (632, 127735), (790, 102188), (866, 93220), (1180, 68414), (1580, 51094), (1732, 46610), (2165, 37288), (2360, 34207), (3160, 25547), (3464, 23305), (4330, 18644), (4661, 17320), (8660, 9322)]