82405820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{20297}}^1$

素因数の和:20342

約数の個数: 48

約数和(自身を含む): 204603840

約数和(自身を除く): 122198020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 20297, 40594, 81188, 101485, 142079, 202970, 284158, 405940, 568316, 588613, 710395, 1177226, 1420790, 2354452, 2841580, 2943065, 4120291, 5886130, 8240582, 11772260, 16481164, 20601455, 41202910, 82405820]

約数ペア:

[(1, 82405820), (2, 41202910), (4, 20601455), (5, 16481164), (7, 11772260), (10, 8240582), (14, 5886130), (20, 4120291), (28, 2943065), (29, 2841580), (35, 2354452), (58, 1420790), (70, 1177226), (116, 710395), (140, 588613), (145, 568316), (203, 405940), (290, 284158), (406, 202970), (580, 142079), (812, 101485), (1015, 81188), (2030, 40594), (4060, 20297)]