20807619664

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2128439}}^1$

素因数の和:2128507

約数の個数: 40

約数和(自身を含む): 44339662080

約数和(自身を除く): 23532042416

約数列:

[1, 2, 4, 8, 13, 16, 26, 47, 52, 94, 104, 188, 208, 376, 611, 752, 1222, 2444, 4888, 9776, 2128439, 4256878, 8513756, 17027512, 27669707, 34055024, 55339414, 100036633, 110678828, 200073266, 221357656, 400146532, 442715312, 800293064, 1300476229, 1600586128, 2600952458, 5201904916, 10403809832, 20807619664]

約数ペア:

[(1, 20807619664), (2, 10403809832), (4, 5201904916), (8, 2600952458), (13, 1600586128), (16, 1300476229), (26, 800293064), (47, 442715312), (52, 400146532), (94, 221357656), (104, 200073266), (188, 110678828), (208, 100036633), (376, 55339414), (611, 34055024), (752, 27669707), (1222, 17027512), (2444, 8513756), (4888, 4256878), (9776, 2128439)]