39358640

素因数分解:

$2^4\times 5^1\times {\mathrm{491983}}^1$

素因数の和:491996

約数の個数: 20

約数和(自身を含む): 91509024

約数和(自身を除く): 52150384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491983, 983966, 1967932, 2459915, 3935864, 4919830, 7871728, 9839660, 19679320, 39358640]

約数ペア:

[(1, 39358640), (2, 19679320), (4, 9839660), (5, 7871728), (8, 4919830), (10, 3935864), (16, 2459915), (20, 1967932), (40, 983966), (80, 491983)]