163951240

素因数分解:

$2^3\times 5^1\times {\mathrm{1409}}^1\times {\mathrm{2909}}^1$

素因数の和:4329

約数の個数: 32

約数和(自身を含む): 369279000

約数和(自身を除く): 205327760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1409, 2818, 2909, 5636, 5818, 7045, 11272, 11636, 14090, 14545, 23272, 28180, 29090, 56360, 58180, 116360, 4098781, 8197562, 16395124, 20493905, 32790248, 40987810, 81975620, 163951240]

約数ペア:

[(1, 163951240), (2, 81975620), (4, 40987810), (5, 32790248), (8, 20493905), (10, 16395124), (20, 8197562), (40, 4098781), (1409, 116360), (2818, 58180), (2909, 56360), (5636, 29090), (5818, 28180), (7045, 23272), (11272, 14545), (11636, 14090)]