20197032016

素因数分解:

$2^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2026187}}^1$

素因数の和:2026291

約数の個数: 40

約数和(自身を含む): 45224516160

約数和(自身を除く): 25027484144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 89, 112, 178, 356, 623, 712, 1246, 1424, 2492, 4984, 9968, 2026187, 4052374, 8104748, 14183309, 16209496, 28366618, 32418992, 56733236, 113466472, 180330643, 226932944, 360661286, 721322572, 1262314501, 1442645144, 2524629002, 2885290288, 5049258004, 10098516008, 20197032016]

約数ペア:

[(1, 20197032016), (2, 10098516008), (4, 5049258004), (7, 2885290288), (8, 2524629002), (14, 1442645144), (16, 1262314501), (28, 721322572), (56, 360661286), (89, 226932944), (112, 180330643), (178, 113466472), (356, 56733236), (623, 32418992), (712, 28366618), (1246, 16209496), (1424, 14183309), (2492, 8104748), (4984, 4052374), (9968, 2026187)]