20784420904

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{2411}}^1\times {\mathrm{82891}}^1$

素因数の和:85321

約数の個数: 32

約数和(自身を含む): 41986455840

約数和(自身を除く): 21202034936

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 2411, 4822, 9644, 19288, 31343, 62686, 82891, 125372, 165782, 250744, 331564, 663128, 1077583, 2155166, 4310332, 8620664, 199850201, 399700402, 799400804, 1598801608, 2598052613, 5196105226, 10392210452, 20784420904]

約数ペア:

[(1, 20784420904), (2, 10392210452), (4, 5196105226), (8, 2598052613), (13, 1598801608), (26, 799400804), (52, 399700402), (104, 199850201), (2411, 8620664), (4822, 4310332), (9644, 2155166), (19288, 1077583), (31343, 663128), (62686, 331564), (82891, 250744), (125372, 165782)]