55639240

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15629}}^1$

素因数の和:15729

約数の個数: 32

約数和(自身を含む): 126603000

約数和(自身を除く): 70963760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 15629, 31258, 62516, 78145, 125032, 156290, 312580, 625160, 1390981, 2781962, 5563924, 6954905, 11127848, 13909810, 27819620, 55639240]

約数ペア:

[(1, 55639240), (2, 27819620), (4, 13909810), (5, 11127848), (8, 6954905), (10, 5563924), (20, 2781962), (40, 1390981), (89, 625160), (178, 312580), (356, 156290), (445, 125032), (712, 78145), (890, 62516), (1780, 31258), (3560, 15629)]