408548990

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{239}}^1\times {\mathrm{859}}^1$

素因数の和:1304

約数の個数: 32

約数和(自身を含む): 743040000

約数和(自身を除く): 334491010

約数列:

[1, 2, 5, 10, 199, 239, 398, 478, 859, 995, 1195, 1718, 1990, 2390, 4295, 8590, 47561, 95122, 170941, 205301, 237805, 341882, 410602, 475610, 854705, 1026505, 1709410, 2053010, 40854899, 81709798, 204274495, 408548990]

約数ペア:

[(1, 408548990), (2, 204274495), (5, 81709798), (10, 40854899), (199, 2053010), (239, 1709410), (398, 1026505), (478, 854705), (859, 475610), (995, 410602), (1195, 341882), (1718, 237805), (1990, 205301), (2390, 170941), (4295, 95122), (8590, 47561)]