13889785

素因数分解:

$5^1\times 7^4\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:135

約数の個数: 40

約数和(自身を含む): 21175560

約数和(自身を除く): 7285775

約数列:

[1, 5, 7, 13, 35, 49, 65, 89, 91, 245, 343, 445, 455, 623, 637, 1157, 1715, 2401, 3115, 3185, 4361, 4459, 5785, 8099, 12005, 21805, 22295, 30527, 31213, 40495, 56693, 152635, 156065, 213689, 283465, 396851, 1068445, 1984255, 2777957, 13889785]

約数ペア:

[(1, 13889785), (5, 2777957), (7, 1984255), (13, 1068445), (35, 396851), (49, 283465), (65, 213689), (89, 156065), (91, 152635), (245, 56693), (343, 40495), (445, 31213), (455, 30527), (623, 22295), (637, 21805), (1157, 12005), (1715, 8099), (2401, 5785), (3115, 4459), (3185, 4361)]