724420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1249}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 1575000

約数和(自身を除く): 850580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 1249, 2498, 4996, 6245, 12490, 24980, 36221, 72442, 144884, 181105, 362210, 724420]

約数ペア:

[(1, 724420), (2, 362210), (4, 181105), (5, 144884), (10, 72442), (20, 36221), (29, 24980), (58, 12490), (116, 6245), (145, 4996), (290, 2498), (580, 1249)]