391816

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:133

約数の個数: 32

約数和(自身を含む): 807840

約数和(自身を除く): 416024

約数列:

[1, 2, 4, 8, 17, 34, 43, 67, 68, 86, 134, 136, 172, 268, 344, 536, 731, 1139, 1462, 2278, 2881, 2924, 4556, 5762, 5848, 9112, 11524, 23048, 48977, 97954, 195908, 391816]

約数ペア:

[(1, 391816), (2, 195908), (4, 97954), (8, 48977), (17, 23048), (34, 11524), (43, 9112), (67, 5848), (68, 5762), (86, 4556), (134, 2924), (136, 2881), (172, 2278), (268, 1462), (344, 1139), (536, 731)]