81483860

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{57383}}^1$

素因数の和:57463

約数の個数: 24

約数和(自身を含む): 173529216

約数和(自身を除く): 92045356

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 57383, 114766, 229532, 286915, 573830, 1147660, 4074193, 8148386, 16296772, 20370965, 40741930, 81483860]

約数ペア:

[(1, 81483860), (2, 40741930), (4, 20370965), (5, 16296772), (10, 8148386), (20, 4074193), (71, 1147660), (142, 573830), (284, 286915), (355, 229532), (710, 114766), (1420, 57383)]