31571632

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{421}}^1$

素因数の和:581

約数の個数: 40

約数和(自身を含む): 63316880

約数和(自身を除く): 31745248

約数列:

[1, 2, 4, 8, 16, 43, 86, 109, 172, 218, 344, 421, 436, 688, 842, 872, 1684, 1744, 3368, 4687, 6736, 9374, 18103, 18748, 36206, 37496, 45889, 72412, 74992, 91778, 144824, 183556, 289648, 367112, 734224, 1973227, 3946454, 7892908, 15785816, 31571632]

約数ペア:

[(1, 31571632), (2, 15785816), (4, 7892908), (8, 3946454), (16, 1973227), (43, 734224), (86, 367112), (109, 289648), (172, 183556), (218, 144824), (344, 91778), (421, 74992), (436, 72412), (688, 45889), (842, 37496), (872, 36206), (1684, 18748), (1744, 18103), (3368, 9374), (4687, 6736)]