2912656720

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{409081}}^1$

素因数の和:409183

約数の個数: 40

約数和(自身を含む): 6848032680

約数和(自身を除く): 3935375960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 409081, 818162, 1636324, 2045405, 3272648, 4090810, 6545296, 8181620, 16363240, 32726480, 36408209, 72816418, 145632836, 182041045, 291265672, 364082090, 582531344, 728164180, 1456328360, 2912656720]

約数ペア:

[(1, 2912656720), (2, 1456328360), (4, 728164180), (5, 582531344), (8, 364082090), (10, 291265672), (16, 182041045), (20, 145632836), (40, 72816418), (80, 36408209), (89, 32726480), (178, 16363240), (356, 8181620), (445, 6545296), (712, 4090810), (890, 3272648), (1424, 2045405), (1780, 1636324), (3560, 818162), (7120, 409081)]