55390040

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15559}}^1$

素因数の和:15659

約数の個数: 32

約数和(自身を含む): 126036000

約数和(自身を除く): 70645960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 15559, 31118, 62236, 77795, 124472, 155590, 311180, 622360, 1384751, 2769502, 5539004, 6923755, 11078008, 13847510, 27695020, 55390040]

約数ペア:

[(1, 55390040), (2, 27695020), (4, 13847510), (5, 11078008), (8, 6923755), (10, 5539004), (20, 2769502), (40, 1384751), (89, 622360), (178, 311180), (356, 155590), (445, 124472), (712, 77795), (890, 62236), (1780, 31118), (3560, 15559)]