639411195

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{7589}}^1$

素因数の和:7775

約数の個数: 32

約数和(自身を含む): 1055799360

約数和(自身を除く): 416388165

約数列:

[1, 3, 5, 15, 41, 123, 137, 205, 411, 615, 685, 2055, 5617, 7589, 16851, 22767, 28085, 37945, 84255, 113835, 311149, 933447, 1039693, 1555745, 3119079, 4667235, 5198465, 15595395, 42627413, 127882239, 213137065, 639411195]

約数ペア:

[(1, 639411195), (3, 213137065), (5, 127882239), (15, 42627413), (41, 15595395), (123, 5198465), (137, 4667235), (205, 3119079), (411, 1555745), (615, 1039693), (685, 933447), (2055, 311149), (5617, 113835), (7589, 84255), (16851, 37945), (22767, 28085)]