20456875312

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67292353}}^1$

素因数の和:67292380

約数の個数: 20

約数和(自身を含む): 41721259480

約数和(自身を除く): 21264384168

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 67292353, 134584706, 269169412, 538338824, 1076677648, 1278554707, 2557109414, 5114218828, 10228437656, 20456875312]

約数ペア:

[(1, 20456875312), (2, 10228437656), (4, 5114218828), (8, 2557109414), (16, 1278554707), (19, 1076677648), (38, 538338824), (76, 269169412), (152, 134584706), (304, 67292353)]