80705205

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2153}}^1$

素因数の和:2195

約数の個数: 72

約数和(自身を含む): 172380312

約数和(自身を除く): 91675107

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 49, 51, 63, 85, 105, 119, 147, 153, 245, 255, 315, 357, 441, 595, 735, 765, 833, 1071, 1785, 2153, 2205, 2499, 4165, 5355, 6459, 7497, 10765, 12495, 15071, 19377, 32295, 36601, 37485, 45213, 75355, 96885, 105497, 109803, 135639, 183005, 226065, 256207, 316491, 329409, 527485, 549015, 678195, 768621, 949473, 1281035, 1582455, 1647045, 1793449, 2305863, 3843105, 4747365, 5380347, 8967245, 11529315, 16141041, 26901735, 80705205]

約数ペア:

[(1, 80705205), (3, 26901735), (5, 16141041), (7, 11529315), (9, 8967245), (15, 5380347), (17, 4747365), (21, 3843105), (35, 2305863), (45, 1793449), (49, 1647045), (51, 1582455), (63, 1281035), (85, 949473), (105, 768621), (119, 678195), (147, 549015), (153, 527485), (245, 329409), (255, 316491), (315, 256207), (357, 226065), (441, 183005), (595, 135639), (735, 109803), (765, 105497), (833, 96885), (1071, 75355), (1785, 45213), (2153, 37485), (2205, 36601), (2499, 32295), (4165, 19377), (5355, 15071), (6459, 12495), (7497, 10765)]