51545240

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{14479}}^1$

素因数の和:14579

約数の個数: 32

約数和(自身を含む): 117288000

約数和(自身を除く): 65742760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 14479, 28958, 57916, 72395, 115832, 144790, 289580, 579160, 1288631, 2577262, 5154524, 6443155, 10309048, 12886310, 25772620, 51545240]

約数ペア:

[(1, 51545240), (2, 25772620), (4, 12886310), (5, 10309048), (8, 6443155), (10, 5154524), (20, 2577262), (40, 1288631), (89, 579160), (178, 289580), (356, 144790), (445, 115832), (712, 72395), (890, 57916), (1780, 28958), (3560, 14479)]