209566864

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{23431}}^1$

素因数の和:23495

約数の個数: 40

約数和(自身を含む): 447457472

約数和(自身を除く): 237890608

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 2236, 4472, 8944, 23431, 46862, 93724, 187448, 304603, 374896, 609206, 1007533, 1218412, 2015066, 2436824, 4030132, 4873648, 8060264, 13097929, 16120528, 26195858, 52391716, 104783432, 209566864]

約数ペア:

[(1, 209566864), (2, 104783432), (4, 52391716), (8, 26195858), (13, 16120528), (16, 13097929), (26, 8060264), (43, 4873648), (52, 4030132), (86, 2436824), (104, 2015066), (172, 1218412), (208, 1007533), (344, 609206), (559, 374896), (688, 304603), (1118, 187448), (2236, 93724), (4472, 46862), (8944, 23431)]