9581780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{269}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 21908880

約数和(自身を除く): 12327100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 260, 269, 274, 538, 548, 685, 1076, 1345, 1370, 1781, 2690, 2740, 3497, 3562, 5380, 6994, 7124, 8905, 13988, 17485, 17810, 34970, 35620, 36853, 69940, 73706, 147412, 184265, 368530, 479089, 737060, 958178, 1916356, 2395445, 4790890, 9581780]

約数ペア:

[(1, 9581780), (2, 4790890), (4, 2395445), (5, 1916356), (10, 958178), (13, 737060), (20, 479089), (26, 368530), (52, 184265), (65, 147412), (130, 73706), (137, 69940), (260, 36853), (269, 35620), (274, 34970), (538, 17810), (548, 17485), (685, 13988), (1076, 8905), (1345, 7124), (1370, 6994), (1781, 5380), (2690, 3562), (2740, 3497)]