64401290

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{269}}^2$

素因数の和:634

約数の個数: 24

約数和(自身を含む): 117662220

約数和(自身を除く): 53260930

約数列:

[1, 2, 5, 10, 89, 178, 269, 445, 538, 890, 1345, 2690, 23941, 47882, 72361, 119705, 144722, 239410, 361805, 723610, 6440129, 12880258, 32200645, 64401290]

約数ペア:

[(1, 64401290), (2, 32200645), (5, 12880258), (10, 6440129), (89, 723610), (178, 361805), (269, 239410), (445, 144722), (538, 119705), (890, 72361), (1345, 47882), (2690, 23941)]