18455315440

素因数分解:

$2^4\times 5^1\times {\mathrm{331}}^1\times {\mathrm{349}}^1\times {\mathrm{1997}}^1$

素因数の和:2690

約数の個数: 80

約数和(自身を含む): 43183173600

約数和(自身を除く): 24727858160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 331, 349, 662, 698, 1324, 1396, 1655, 1745, 1997, 2648, 2792, 3310, 3490, 3994, 5296, 5584, 6620, 6980, 7988, 9985, 13240, 13960, 15976, 19970, 26480, 27920, 31952, 39940, 79880, 115519, 159760, 231038, 462076, 577595, 661007, 696953, 924152, 1155190, 1322014, 1393906, 1848304, 2310380, 2644028, 2787812, 3305035, 3484765, 4620760, 5288056, 5575624, 6610070, 6969530, 9241520, 10576112, 11151248, 13220140, 13939060, 26440280, 27878120, 52880560, 55756240, 230691443, 461382886, 922765772, 1153457215, 1845531544, 2306914430, 3691063088, 4613828860, 9227657720, 18455315440]

約数ペア:

[(1, 18455315440), (2, 9227657720), (4, 4613828860), (5, 3691063088), (8, 2306914430), (10, 1845531544), (16, 1153457215), (20, 922765772), (40, 461382886), (80, 230691443), (331, 55756240), (349, 52880560), (662, 27878120), (698, 26440280), (1324, 13939060), (1396, 13220140), (1655, 11151248), (1745, 10576112), (1997, 9241520), (2648, 6969530), (2792, 6610070), (3310, 5575624), (3490, 5288056), (3994, 4620760), (5296, 3484765), (5584, 3305035), (6620, 2787812), (6980, 2644028), (7988, 2310380), (9985, 1848304), (13240, 1393906), (13960, 1322014), (15976, 1155190), (19970, 924152), (26480, 696953), (27920, 661007), (31952, 577595), (39940, 462076), (79880, 231038), (115519, 159760)]