208156984

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79087}}^1$

素因数の和:79147

約数の個数: 32

約数和(自身を含む): 455546880

約数和(自身を除く): 247389896

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 94, 188, 329, 376, 658, 1316, 2632, 79087, 158174, 316348, 553609, 632696, 1107218, 2214436, 3717089, 4428872, 7434178, 14868356, 26019623, 29736712, 52039246, 104078492, 208156984]

約数ペア:

[(1, 208156984), (2, 104078492), (4, 52039246), (7, 29736712), (8, 26019623), (14, 14868356), (28, 7434178), (47, 4428872), (56, 3717089), (94, 2214436), (188, 1107218), (329, 632696), (376, 553609), (658, 316348), (1316, 158174), (2632, 79087)]