127987240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{78041}}^1$

素因数の和:78093

約数の個数: 32

約数和(自身を含む): 294998760

約数和(自身を除く): 167011520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 78041, 156082, 312164, 390205, 624328, 780410, 1560820, 3121640, 3199681, 6399362, 12798724, 15998405, 25597448, 31996810, 63993620, 127987240]

約数ペア:

[(1, 127987240), (2, 63993620), (4, 31996810), (5, 25597448), (8, 15998405), (10, 12798724), (20, 6399362), (40, 3199681), (41, 3121640), (82, 1560820), (164, 780410), (205, 624328), (328, 390205), (410, 312164), (820, 156082), (1640, 78041)]