20797429910

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{643}}^1\times {\mathrm{190261}}^1$

素因数の和:190928

約数の個数: 32

約数和(自身を含む): 39699307872

約数和(自身を除く): 18901877962

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 643, 1286, 3215, 6430, 10931, 21862, 54655, 109310, 190261, 380522, 951305, 1902610, 3234437, 6468874, 16172185, 32344370, 122337823, 244675646, 611689115, 1223378230, 2079742991, 4159485982, 10398714955, 20797429910]

約数ペア:

[(1, 20797429910), (2, 10398714955), (5, 4159485982), (10, 2079742991), (17, 1223378230), (34, 611689115), (85, 244675646), (170, 122337823), (643, 32344370), (1286, 16172185), (3215, 6468874), (6430, 3234437), (10931, 1902610), (21862, 951305), (54655, 380522), (109310, 190261)]