20199595

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{227}}^1$

素因数の和:319

約数の個数: 24

約数和(自身を含む): 26946864

約数和(自身を除く): 6747269

約数列:

[1, 5, 13, 37, 65, 185, 227, 481, 1135, 1369, 2405, 2951, 6845, 8399, 14755, 17797, 41995, 88985, 109187, 310763, 545935, 1553815, 4039919, 20199595]

約数ペア:

[(1, 20199595), (5, 4039919), (13, 1553815), (37, 545935), (65, 310763), (185, 109187), (227, 88985), (481, 41995), (1135, 17797), (1369, 14755), (2405, 8399), (2951, 6845)]