28321865

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{277}}^1$

素因数の和:330

約数の個数: 36

約数和(自身を含む): 40597452

約数和(自身を除く): 12275587

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 169, 277, 605, 715, 845, 1385, 1573, 1859, 3047, 3601, 7865, 9295, 15235, 18005, 20449, 33517, 39611, 46813, 102245, 167585, 198055, 234065, 435721, 514943, 2178605, 2574715, 5664373, 28321865]

約数ペア:

[(1, 28321865), (5, 5664373), (11, 2574715), (13, 2178605), (55, 514943), (65, 435721), (121, 234065), (143, 198055), (169, 167585), (277, 102245), (605, 46813), (715, 39611), (845, 33517), (1385, 20449), (1573, 18005), (1859, 15235), (3047, 9295), (3601, 7865)]