18411440

素因数分解:

$2^4\times 5^1\times {\mathrm{230143}}^1$

素因数の和:230156

約数の個数: 20

約数和(自身を含む): 42806784

約数和(自身を除く): 24395344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 230143, 460286, 920572, 1150715, 1841144, 2301430, 3682288, 4602860, 9205720, 18411440]

約数ペア:

[(1, 18411440), (2, 9205720), (4, 4602860), (5, 3682288), (8, 2301430), (10, 1841144), (16, 1150715), (20, 920572), (40, 460286), (80, 230143)]