19620784880

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{353}}^1\times {\mathrm{4663}}^1$

素因数の和:5178

約数の個数: 80

約数和(自身を含む): 46064462400

約数和(自身を除く): 26443677520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 353, 596, 706, 745, 1192, 1412, 1490, 1765, 2384, 2824, 2980, 3530, 4663, 5648, 5960, 7060, 9326, 11920, 14120, 18652, 23315, 28240, 37304, 46630, 52597, 74608, 93260, 105194, 186520, 210388, 262985, 373040, 420776, 525970, 694787, 841552, 1051940, 1389574, 1646039, 2103880, 2779148, 3292078, 3473935, 4207760, 5558296, 6584156, 6947870, 8230195, 11116592, 13168312, 13895740, 16460390, 26336624, 27791480, 32920780, 55582960, 65841560, 131683120, 245259811, 490519622, 981039244, 1226299055, 1962078488, 2452598110, 3924156976, 4905196220, 9810392440, 19620784880]

約数ペア:

[(1, 19620784880), (2, 9810392440), (4, 4905196220), (5, 3924156976), (8, 2452598110), (10, 1962078488), (16, 1226299055), (20, 981039244), (40, 490519622), (80, 245259811), (149, 131683120), (298, 65841560), (353, 55582960), (596, 32920780), (706, 27791480), (745, 26336624), (1192, 16460390), (1412, 13895740), (1490, 13168312), (1765, 11116592), (2384, 8230195), (2824, 6947870), (2980, 6584156), (3530, 5558296), (4663, 4207760), (5648, 3473935), (5960, 3292078), (7060, 2779148), (9326, 2103880), (11920, 1646039), (14120, 1389574), (18652, 1051940), (23315, 841552), (28240, 694787), (37304, 525970), (46630, 420776), (52597, 373040), (74608, 262985), (93260, 210388), (105194, 186520)]