438260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1289}}^1$

素因数の和:1315

約数の個数: 24

約数和(自身を含む): 975240

約数和(自身を除く): 536980

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 1289, 2578, 5156, 6445, 12890, 21913, 25780, 43826, 87652, 109565, 219130, 438260]

約数ペア:

[(1, 438260), (2, 219130), (4, 109565), (5, 87652), (10, 43826), (17, 25780), (20, 21913), (34, 12890), (68, 6445), (85, 5156), (170, 2578), (340, 1289)]