87616940

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{49223}}^1$

素因数の和:49321

約数の個数: 24

約数和(自身を含む): 186066720

約数和(自身を除く): 98449780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 49223, 98446, 196892, 246115, 492230, 984460, 4380847, 8761694, 17523388, 21904235, 43808470, 87616940]

約数ペア:

[(1, 87616940), (2, 43808470), (4, 21904235), (5, 17523388), (10, 8761694), (20, 4380847), (89, 984460), (178, 492230), (356, 246115), (445, 196892), (890, 98446), (1780, 49223)]