20673770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{941}}^1$

素因数の和:987

約数の個数: 32

約数和(自身を含む): 40355280

約数和(自身を除く): 19681510

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 941, 1690, 1882, 2197, 4394, 4705, 9410, 10985, 12233, 21970, 24466, 61165, 122330, 159029, 318058, 795145, 1590290, 2067377, 4134754, 10336885, 20673770]

約数ペア:

[(1, 20673770), (2, 10336885), (5, 4134754), (10, 2067377), (13, 1590290), (26, 795145), (65, 318058), (130, 159029), (169, 122330), (338, 61165), (845, 24466), (941, 21970), (1690, 12233), (1882, 10985), (2197, 9410), (4394, 4705)]