18557780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{40343}}^1$

素因数の和:40375

約数の個数: 24

約数和(自身を含む): 40666752

約数和(自身を除く): 22108972

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 40343, 80686, 161372, 201715, 403430, 806860, 927889, 1855778, 3711556, 4639445, 9278890, 18557780]

約数ペア:

[(1, 18557780), (2, 9278890), (4, 4639445), (5, 3711556), (10, 1855778), (20, 927889), (23, 806860), (46, 403430), (92, 201715), (115, 161372), (230, 80686), (460, 40343)]