19440560

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5927}}^1$

素因数の和:5981

約数の個数: 40

約数和(自身を含む): 46309536

約数和(自身を除く): 26868976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 5927, 11854, 23708, 29635, 47416, 59270, 94832, 118540, 237080, 243007, 474160, 486014, 972028, 1215035, 1944056, 2430070, 3888112, 4860140, 9720280, 19440560]

約数ペア:

[(1, 19440560), (2, 9720280), (4, 4860140), (5, 3888112), (8, 2430070), (10, 1944056), (16, 1215035), (20, 972028), (40, 486014), (41, 474160), (80, 243007), (82, 237080), (164, 118540), (205, 94832), (328, 59270), (410, 47416), (656, 29635), (820, 23708), (1640, 11854), (3280, 5927)]