81214850

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{229}}^1$

素因数の和:455

約数の個数: 48

約数和(自身を含む): 156318120

約数和(自身を除く): 75103270

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 173, 205, 229, 346, 410, 458, 865, 1025, 1145, 1730, 2050, 2290, 4325, 5725, 7093, 8650, 9389, 11450, 14186, 18778, 35465, 39617, 46945, 70930, 79234, 93890, 177325, 198085, 234725, 354650, 396170, 469450, 990425, 1624297, 1980850, 3248594, 8121485, 16242970, 40607425, 81214850]

約数ペア:

[(1, 81214850), (2, 40607425), (5, 16242970), (10, 8121485), (25, 3248594), (41, 1980850), (50, 1624297), (82, 990425), (173, 469450), (205, 396170), (229, 354650), (346, 234725), (410, 198085), (458, 177325), (865, 93890), (1025, 79234), (1145, 70930), (1730, 46945), (2050, 39617), (2290, 35465), (4325, 18778), (5725, 14186), (7093, 11450), (8650, 9389)]