20652320

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9929}}^1$

素因数の和:9957

約数の個数: 48

約数和(自身を含む): 52549560

約数和(自身を除く): 31897240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9929, 19858, 39716, 49645, 79432, 99290, 129077, 158864, 198580, 258154, 317728, 397160, 516308, 645385, 794320, 1032616, 1290770, 1588640, 2065232, 2581540, 4130464, 5163080, 10326160, 20652320]

約数ペア:

[(1, 20652320), (2, 10326160), (4, 5163080), (5, 4130464), (8, 2581540), (10, 2065232), (13, 1588640), (16, 1290770), (20, 1032616), (26, 794320), (32, 645385), (40, 516308), (52, 397160), (65, 317728), (80, 258154), (104, 198580), (130, 158864), (160, 129077), (208, 99290), (260, 79432), (416, 49645), (520, 39716), (1040, 19858), (2080, 9929)]