1280491745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{7499}}^1$

素因数の和:7625

約数の個数: 32

約数和(自身を含む): 1723680000

約数和(自身を除く): 443188255

約数列:

[1, 5, 13, 37, 65, 71, 185, 355, 481, 923, 2405, 2627, 4615, 7499, 13135, 34151, 37495, 97487, 170755, 277463, 487435, 532429, 1387315, 2662145, 3607019, 6921577, 18035095, 19699873, 34607885, 98499365, 256098349, 1280491745]

約数ペア:

[(1, 1280491745), (5, 256098349), (13, 98499365), (37, 34607885), (65, 19699873), (71, 18035095), (185, 6921577), (355, 3607019), (481, 2662145), (923, 1387315), (2405, 532429), (2627, 487435), (4615, 277463), (7499, 170755), (13135, 97487), (34151, 37495)]