12909520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12413}}^1$

素因数の和:12439

約数の個数: 40

約数和(自身を含む): 32326056

約数和(自身を除く): 19416536

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 12413, 24826, 49652, 62065, 99304, 124130, 161369, 198608, 248260, 322738, 496520, 645476, 806845, 993040, 1290952, 1613690, 2581904, 3227380, 6454760, 12909520]

約数ペア:

[(1, 12909520), (2, 6454760), (4, 3227380), (5, 2581904), (8, 1613690), (10, 1290952), (13, 993040), (16, 806845), (20, 645476), (26, 496520), (40, 322738), (52, 248260), (65, 198608), (80, 161369), (104, 124130), (130, 99304), (208, 62065), (260, 49652), (520, 24826), (1040, 12413)]