161741515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{443}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 216167616

約数和(自身を除く): 54426101

約数列:

[1, 5, 13, 41, 65, 137, 205, 443, 533, 685, 1781, 2215, 2665, 5617, 5759, 8905, 18163, 28085, 28795, 60691, 73021, 90815, 236119, 303455, 365105, 788983, 1180595, 2488331, 3944915, 12441655, 32348303, 161741515]

約数ペア:

[(1, 161741515), (5, 32348303), (13, 12441655), (41, 3944915), (65, 2488331), (137, 1180595), (205, 788983), (443, 365105), (533, 303455), (685, 236119), (1781, 90815), (2215, 73021), (2665, 60691), (5617, 28795), (5759, 28085), (8905, 18163)]