81071510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20117}}^1$

素因数の和:20168

約数の個数: 32

約数和(自身を含む): 162231552

約数和(自身を除く): 81160042

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 20117, 40234, 100585, 201170, 261521, 523042, 623627, 1247254, 1307605, 2615210, 3118135, 6236270, 8107151, 16214302, 40535755, 81071510]

約数ペア:

[(1, 81071510), (2, 40535755), (5, 16214302), (10, 8107151), (13, 6236270), (26, 3118135), (31, 2615210), (62, 1307605), (65, 1247254), (130, 623627), (155, 523042), (310, 261521), (403, 201170), (806, 100585), (2015, 40234), (4030, 20117)]