77870480

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23741}}^1$

素因数の和:23795

約数の個数: 40

約数和(自身を含む): 185472504

約数和(自身を除く): 107602024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 23741, 47482, 94964, 118705, 189928, 237410, 379856, 474820, 949640, 973381, 1899280, 1946762, 3893524, 4866905, 7787048, 9733810, 15574096, 19467620, 38935240, 77870480]

約数ペア:

[(1, 77870480), (2, 38935240), (4, 19467620), (5, 15574096), (8, 9733810), (10, 7787048), (16, 4866905), (20, 3893524), (40, 1946762), (41, 1899280), (80, 973381), (82, 949640), (164, 474820), (205, 379856), (328, 237410), (410, 189928), (656, 118705), (820, 94964), (1640, 47482), (3280, 23741)]