2238557680

素因数分解:

$2^4\times 5^1\times {\mathrm{27981971}}^1$

素因数の和:27981984

約数の個数: 20

約数和(自身を含む): 5204646792

約数和(自身を除く): 2966089112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 27981971, 55963942, 111927884, 139909855, 223855768, 279819710, 447711536, 559639420, 1119278840, 2238557680]

約数ペア:

[(1, 2238557680), (2, 1119278840), (4, 559639420), (5, 447711536), (8, 279819710), (10, 223855768), (16, 139909855), (20, 111927884), (40, 55963942), (80, 27981971)]