18005820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{997}}^1$

素因数の和:1059

約数の個数: 96

約数和(自身を含む): 59017728

約数和(自身を除く): 41011908

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 60, 70, 84, 86, 105, 129, 140, 172, 210, 215, 258, 301, 420, 430, 516, 602, 645, 860, 903, 997, 1204, 1290, 1505, 1806, 1994, 2580, 2991, 3010, 3612, 3988, 4515, 4985, 5982, 6020, 6979, 9030, 9970, 11964, 13958, 14955, 18060, 19940, 20937, 27916, 29910, 34895, 41874, 42871, 59820, 69790, 83748, 85742, 104685, 128613, 139580, 171484, 209370, 214355, 257226, 300097, 418740, 428710, 514452, 600194, 643065, 857420, 900291, 1200388, 1286130, 1500485, 1800582, 2572260, 3000970, 3601164, 4501455, 6001940, 9002910, 18005820]

約数ペア:

[(1, 18005820), (2, 9002910), (3, 6001940), (4, 4501455), (5, 3601164), (6, 3000970), (7, 2572260), (10, 1800582), (12, 1500485), (14, 1286130), (15, 1200388), (20, 900291), (21, 857420), (28, 643065), (30, 600194), (35, 514452), (42, 428710), (43, 418740), (60, 300097), (70, 257226), (84, 214355), (86, 209370), (105, 171484), (129, 139580), (140, 128613), (172, 104685), (210, 85742), (215, 83748), (258, 69790), (301, 59820), (420, 42871), (430, 41874), (516, 34895), (602, 29910), (645, 27916), (860, 20937), (903, 19940), (997, 18060), (1204, 14955), (1290, 13958), (1505, 11964), (1806, 9970), (1994, 9030), (2580, 6979), (2991, 6020), (3010, 5982), (3612, 4985), (3988, 4515)]