28665455

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{251}}^2$

素因数の和:527

約数の個数: 24

約数和(自身を含む): 42506016

約数和(自身を除く): 13840561

約数列:

[1, 5, 7, 13, 35, 65, 91, 251, 455, 1255, 1757, 3263, 8785, 16315, 22841, 63001, 114205, 315005, 441007, 819013, 2205035, 4095065, 5733091, 28665455]

約数ペア:

[(1, 28665455), (5, 5733091), (7, 4095065), (13, 2205035), (35, 819013), (65, 441007), (91, 315005), (251, 114205), (455, 63001), (1255, 22841), (1757, 16315), (3263, 8785)]