71398576

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{661}}^1$

素因数の和:869

約数の個数: 40

約数和(自身を含む): 142668944

約数和(自身を除く): 71270368

約数列:

[1, 2, 4, 8, 16, 43, 86, 157, 172, 314, 344, 628, 661, 688, 1256, 1322, 2512, 2644, 5288, 6751, 10576, 13502, 27004, 28423, 54008, 56846, 103777, 108016, 113692, 207554, 227384, 415108, 454768, 830216, 1660432, 4462411, 8924822, 17849644, 35699288, 71398576]

約数ペア:

[(1, 71398576), (2, 35699288), (4, 17849644), (8, 8924822), (16, 4462411), (43, 1660432), (86, 830216), (157, 454768), (172, 415108), (314, 227384), (344, 207554), (628, 113692), (661, 108016), (688, 103777), (1256, 56846), (1322, 54008), (2512, 28423), (2644, 27004), (5288, 13502), (6751, 10576)]