16129156720

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2265331}}^1$

素因数の和:2265433

約数の個数: 40

約数和(自身を含む): 37921657680

約数和(自身を除く): 21792500960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 2265331, 4530662, 9061324, 11326655, 18122648, 22653310, 36245296, 45306620, 90613240, 181226480, 201614459, 403228918, 806457836, 1008072295, 1612915672, 2016144590, 3225831344, 4032289180, 8064578360, 16129156720]

約数ペア:

[(1, 16129156720), (2, 8064578360), (4, 4032289180), (5, 3225831344), (8, 2016144590), (10, 1612915672), (16, 1008072295), (20, 806457836), (40, 403228918), (80, 201614459), (89, 181226480), (178, 90613240), (356, 45306620), (445, 36245296), (712, 22653310), (890, 18122648), (1424, 11326655), (1780, 9061324), (3560, 4530662), (7120, 2265331)]