40940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:121

約数の個数: 24

約数和(自身を含む): 90720

約数和(自身を除く): 49780

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 89, 92, 115, 178, 230, 356, 445, 460, 890, 1780, 2047, 4094, 8188, 10235, 20470, 40940]

約数ペア:

[(1, 40940), (2, 20470), (4, 10235), (5, 8188), (10, 4094), (20, 2047), (23, 1780), (46, 890), (89, 460), (92, 445), (115, 356), (178, 230)]