20456487205

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2347}}^1\times {\mathrm{22639}}^1$

素因数の和:25009

約数の個数: 32

約数和(自身を含む): 30619422720

約数和(自身を除く): 10162935515

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 2347, 11735, 16429, 22639, 25817, 82145, 113195, 129085, 158473, 180719, 249029, 792365, 903595, 1245145, 1743203, 8716015, 53133733, 265668665, 371936131, 584471063, 1859680655, 2922355315, 4091297441, 20456487205]

約数ペア:

[(1, 20456487205), (5, 4091297441), (7, 2922355315), (11, 1859680655), (35, 584471063), (55, 371936131), (77, 265668665), (385, 53133733), (2347, 8716015), (11735, 1743203), (16429, 1245145), (22639, 903595), (25817, 792365), (82145, 249029), (113195, 180719), (129085, 158473)]