420580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1237}}^1$

素因数の和:1263

約数の個数: 24

約数和(自身を含む): 935928

約数和(自身を除く): 515348

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1237, 2474, 4948, 6185, 12370, 21029, 24740, 42058, 84116, 105145, 210290, 420580]

約数ペア:

[(1, 420580), (2, 210290), (4, 105145), (5, 84116), (10, 42058), (17, 24740), (20, 21029), (34, 12370), (68, 6185), (85, 4948), (170, 2474), (340, 1237)]