19994820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{14489}}^1$

素因数の和:14524

約数の個数: 48

約数和(自身を含む): 58423680

約数和(自身を除く): 38428860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 14489, 28978, 43467, 57956, 72445, 86934, 144890, 173868, 217335, 289780, 333247, 434670, 666494, 869340, 999741, 1332988, 1666235, 1999482, 3332470, 3998964, 4998705, 6664940, 9997410, 19994820]

約数ペア:

[(1, 19994820), (2, 9997410), (3, 6664940), (4, 4998705), (5, 3998964), (6, 3332470), (10, 1999482), (12, 1666235), (15, 1332988), (20, 999741), (23, 869340), (30, 666494), (46, 434670), (60, 333247), (69, 289780), (92, 217335), (115, 173868), (138, 144890), (230, 86934), (276, 72445), (345, 57956), (460, 43467), (690, 28978), (1380, 14489)]