18653120

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{821}}^1$

素因数の和:909

約数の個数: 56

約数和(自身を含む): 45098208

約数和(自身を除く): 26445088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 821, 1136, 1420, 1642, 2272, 2840, 3284, 4105, 4544, 5680, 6568, 8210, 11360, 13136, 16420, 22720, 26272, 32840, 52544, 58291, 65680, 116582, 131360, 233164, 262720, 291455, 466328, 582910, 932656, 1165820, 1865312, 2331640, 3730624, 4663280, 9326560, 18653120]

約数ペア:

[(1, 18653120), (2, 9326560), (4, 4663280), (5, 3730624), (8, 2331640), (10, 1865312), (16, 1165820), (20, 932656), (32, 582910), (40, 466328), (64, 291455), (71, 262720), (80, 233164), (142, 131360), (160, 116582), (284, 65680), (320, 58291), (355, 52544), (568, 32840), (710, 26272), (821, 22720), (1136, 16420), (1420, 13136), (1642, 11360), (2272, 8210), (2840, 6568), (3284, 5680), (4105, 4544)]