193891480

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{28019}}^1$

素因数の和:28203

約数の個数: 32

約数和(自身を含む): 438793200

約数和(自身を除く): 244901720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 28019, 56038, 112076, 140095, 224152, 280190, 560380, 1120760, 4847287, 9694574, 19389148, 24236435, 38778296, 48472870, 96945740, 193891480]

約数ペア:

[(1, 193891480), (2, 96945740), (4, 48472870), (5, 38778296), (8, 24236435), (10, 19389148), (20, 9694574), (40, 4847287), (173, 1120760), (346, 560380), (692, 280190), (865, 224152), (1384, 140095), (1730, 112076), (3460, 56038), (6920, 28019)]