40858240

素因数分解:

$2^7\times 5^1\times {\mathrm{63841}}^1$

素因数の和:63860

約数の個数: 32

約数和(自身を含む): 97678260

約数和(自身を除く): 56820020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 63841, 127682, 255364, 319205, 510728, 638410, 1021456, 1276820, 2042912, 2553640, 4085824, 5107280, 8171648, 10214560, 20429120, 40858240]

約数ペア:

[(1, 40858240), (2, 20429120), (4, 10214560), (5, 8171648), (8, 5107280), (10, 4085824), (16, 2553640), (20, 2042912), (32, 1276820), (40, 1021456), (64, 638410), (80, 510728), (128, 319205), (160, 255364), (320, 127682), (640, 63841)]