19749640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21467}}^1$

素因数の和:21501

約数の個数: 32

約数和(自身を含む): 46370880

約数和(自身を除く): 26621240

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21467, 42934, 85868, 107335, 171736, 214670, 429340, 493741, 858680, 987482, 1974964, 2468705, 3949928, 4937410, 9874820, 19749640]

約数ペア:

[(1, 19749640), (2, 9874820), (4, 4937410), (5, 3949928), (8, 2468705), (10, 1974964), (20, 987482), (23, 858680), (40, 493741), (46, 429340), (92, 214670), (115, 171736), (184, 107335), (230, 85868), (460, 42934), (920, 21467)]