19854340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90247}}^1$

素因数の和:90267

約数の個数: 24

約数和(自身を含む): 45484992

約数和(自身を除く): 25630652

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90247, 180494, 360988, 451235, 902470, 992717, 1804940, 1985434, 3970868, 4963585, 9927170, 19854340]

約数ペア:

[(1, 19854340), (2, 9927170), (4, 4963585), (5, 3970868), (10, 1985434), (11, 1804940), (20, 992717), (22, 902470), (44, 451235), (55, 360988), (110, 180494), (220, 90247)]