263540238

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{108991}}^1$

素因数の和:109040

約数の個数: 32

約数和(自身を含む): 585940992

約数和(自身を除く): 322400754

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 108991, 217982, 326973, 653946, 1416883, 2833766, 3378721, 4250649, 6757442, 8501298, 10136163, 20272326, 43923373, 87846746, 131770119, 263540238]

約数ペア:

[(1, 263540238), (2, 131770119), (3, 87846746), (6, 43923373), (13, 20272326), (26, 10136163), (31, 8501298), (39, 6757442), (62, 4250649), (78, 3378721), (93, 2833766), (186, 1416883), (403, 653946), (806, 326973), (1209, 217982), (2418, 108991)]