17989880

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{5693}}^1$

素因数の和:5783

約数の個数: 32

約数和(自身を含む): 40996800

約数和(自身を除く): 23006920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 5693, 11386, 22772, 28465, 45544, 56930, 113860, 227720, 449747, 899494, 1798988, 2248735, 3597976, 4497470, 8994940, 17989880]

約数ペア:

[(1, 17989880), (2, 8994940), (4, 4497470), (5, 3597976), (8, 2248735), (10, 1798988), (20, 899494), (40, 449747), (79, 227720), (158, 113860), (316, 56930), (395, 45544), (632, 28465), (790, 22772), (1580, 11386), (3160, 5693)]