255537280

素因数分解:

$2^7\times 5^1\times {\mathrm{399277}}^1$

素因数の和:399296

約数の個数: 32

約数和(自身を含む): 610895340

約数和(自身を除く): 355358060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 399277, 798554, 1597108, 1996385, 3194216, 3992770, 6388432, 7985540, 12776864, 15971080, 25553728, 31942160, 51107456, 63884320, 127768640, 255537280]

約数ペア:

[(1, 255537280), (2, 127768640), (4, 63884320), (5, 51107456), (8, 31942160), (10, 25553728), (16, 15971080), (20, 12776864), (32, 7985540), (40, 6388432), (64, 3992770), (80, 3194216), (128, 1996385), (160, 1597108), (320, 798554), (640, 399277)]