858225920

素因数分解:

$2^8\times 5^1\times {\mathrm{670489}}^1$

素因数の和:670510

約数の個数: 36

約数和(自身を含む): 2055722340

約数和(自身を除く): 1197496420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 670489, 1340978, 2681956, 3352445, 5363912, 6704890, 10727824, 13409780, 21455648, 26819560, 42911296, 53639120, 85822592, 107278240, 171645184, 214556480, 429112960, 858225920]

約数ペア:

[(1, 858225920), (2, 429112960), (4, 214556480), (5, 171645184), (8, 107278240), (10, 85822592), (16, 53639120), (20, 42911296), (32, 26819560), (40, 21455648), (64, 13409780), (80, 10727824), (128, 6704890), (160, 5363912), (256, 3352445), (320, 2681956), (640, 1340978), (1280, 670489)]