16951520

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1999}}^1$

素因数の和:2067

約数の個数: 48

約数和(自身を含む): 40824000

約数和(自身を除く): 23872480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 212, 265, 424, 530, 848, 1060, 1696, 1999, 2120, 3998, 4240, 7996, 8480, 9995, 15992, 19990, 31984, 39980, 63968, 79960, 105947, 159920, 211894, 319840, 423788, 529735, 847576, 1059470, 1695152, 2118940, 3390304, 4237880, 8475760, 16951520]

約数ペア:

[(1, 16951520), (2, 8475760), (4, 4237880), (5, 3390304), (8, 2118940), (10, 1695152), (16, 1059470), (20, 847576), (32, 529735), (40, 423788), (53, 319840), (80, 211894), (106, 159920), (160, 105947), (212, 79960), (265, 63968), (424, 39980), (530, 31984), (848, 19990), (1060, 15992), (1696, 9995), (1999, 8480), (2120, 7996), (3998, 4240)]