9990448

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1117}}^1$

素因数の和:1181

約数の個数: 40

約数和(自身を含む): 21349328

約数和(自身を除く): 11358880

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1117, 1118, 2234, 2236, 4468, 4472, 8936, 8944, 14521, 17872, 29042, 48031, 58084, 96062, 116168, 192124, 232336, 384248, 624403, 768496, 1248806, 2497612, 4995224, 9990448]

約数ペア:

[(1, 9990448), (2, 4995224), (4, 2497612), (8, 1248806), (13, 768496), (16, 624403), (26, 384248), (43, 232336), (52, 192124), (86, 116168), (104, 96062), (172, 58084), (208, 48031), (344, 29042), (559, 17872), (688, 14521), (1117, 8944), (1118, 8936), (2234, 4472), (2236, 4468)]