164811640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{20297}}^1$

素因数の和:20344

約数の個数: 64

約数和(自身を含む): 438436800

約数和(自身を除く): 273625160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 280, 290, 406, 580, 812, 1015, 1160, 1624, 2030, 4060, 8120, 20297, 40594, 81188, 101485, 142079, 162376, 202970, 284158, 405940, 568316, 588613, 710395, 811880, 1136632, 1177226, 1420790, 2354452, 2841580, 2943065, 4120291, 4708904, 5683160, 5886130, 8240582, 11772260, 16481164, 20601455, 23544520, 32962328, 41202910, 82405820, 164811640]

約数ペア:

[(1, 164811640), (2, 82405820), (4, 41202910), (5, 32962328), (7, 23544520), (8, 20601455), (10, 16481164), (14, 11772260), (20, 8240582), (28, 5886130), (29, 5683160), (35, 4708904), (40, 4120291), (56, 2943065), (58, 2841580), (70, 2354452), (116, 1420790), (140, 1177226), (145, 1136632), (203, 811880), (232, 710395), (280, 588613), (290, 568316), (406, 405940), (580, 284158), (812, 202970), (1015, 162376), (1160, 142079), (1624, 101485), (2030, 81188), (4060, 40594), (8120, 20297)]