80686640

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27259}}^1$

素因数の和:27309

約数の個数: 40

約数和(自身を含む): 192673680

約数和(自身を除く): 111987040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 27259, 54518, 109036, 136295, 218072, 272590, 436144, 545180, 1008583, 1090360, 2017166, 2180720, 4034332, 5042915, 8068664, 10085830, 16137328, 20171660, 40343320, 80686640]

約数ペア:

[(1, 80686640), (2, 40343320), (4, 20171660), (5, 16137328), (8, 10085830), (10, 8068664), (16, 5042915), (20, 4034332), (37, 2180720), (40, 2017166), (74, 1090360), (80, 1008583), (148, 545180), (185, 436144), (296, 272590), (370, 218072), (592, 136295), (740, 109036), (1480, 54518), (2960, 27259)]