128831416

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{25849}}^1$

素因数の和:25951

約数の個数: 32

約数和(自身を含む): 279180000

約数和(自身を除く): 150348584

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 4984, 25849, 51698, 103396, 180943, 206792, 361886, 723772, 1447544, 2300561, 4601122, 9202244, 16103927, 18404488, 32207854, 64415708, 128831416]

約数ペア:

[(1, 128831416), (2, 64415708), (4, 32207854), (7, 18404488), (8, 16103927), (14, 9202244), (28, 4601122), (56, 2300561), (89, 1447544), (178, 723772), (356, 361886), (623, 206792), (712, 180943), (1246, 103396), (2492, 51698), (4984, 25849)]