22638040

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{6359}}^1$

素因数の和:6459

約数の個数: 32

約数和(自身を含む): 51516000

約数和(自身を除く): 28877960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 6359, 12718, 25436, 31795, 50872, 63590, 127180, 254360, 565951, 1131902, 2263804, 2829755, 4527608, 5659510, 11319020, 22638040]

約数ペア:

[(1, 22638040), (2, 11319020), (4, 5659510), (5, 4527608), (8, 2829755), (10, 2263804), (20, 1131902), (40, 565951), (89, 254360), (178, 127180), (356, 63590), (445, 50872), (712, 31795), (890, 25436), (1780, 12718), (3560, 6359)]