401020990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{81343}}^1$

素因数の和:81396

約数の個数: 32

約数和(自身を含む): 790663680

約数和(自身を除く): 389642690

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 290, 493, 986, 2465, 4930, 81343, 162686, 406715, 813430, 1382831, 2358947, 2765662, 4717894, 6914155, 11794735, 13828310, 23589470, 40102099, 80204198, 200510495, 401020990]

約数ペア:

[(1, 401020990), (2, 200510495), (5, 80204198), (10, 40102099), (17, 23589470), (29, 13828310), (34, 11794735), (58, 6914155), (85, 4717894), (145, 2765662), (170, 2358947), (290, 1382831), (493, 813430), (986, 406715), (2465, 162686), (4930, 81343)]