20246688020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1096787}}^1$

素因数の和:1096880

約数の個数: 48

約数和(自身を含む): 46433616768

約数和(自身を除く): 26186928748

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 3692, 4615, 9230, 18460, 1096787, 2193574, 4387148, 5483935, 10967870, 14258231, 21935740, 28516462, 57032924, 71291155, 77871877, 142582310, 155743754, 285164620, 311487508, 389359385, 778718770, 1012334401, 1557437540, 2024668802, 4049337604, 5061672005, 10123344010, 20246688020]

約数ペア:

[(1, 20246688020), (2, 10123344010), (4, 5061672005), (5, 4049337604), (10, 2024668802), (13, 1557437540), (20, 1012334401), (26, 778718770), (52, 389359385), (65, 311487508), (71, 285164620), (130, 155743754), (142, 142582310), (260, 77871877), (284, 71291155), (355, 57032924), (710, 28516462), (923, 21935740), (1420, 14258231), (1846, 10967870), (3692, 5483935), (4615, 4387148), (9230, 2193574), (18460, 1096787)]