20042384

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{509}}^1$

素因数の和:647

約数の個数: 40

約数和(自身を含む): 40979520

約数和(自身を除く): 20937136

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 107, 184, 214, 368, 428, 509, 856, 1018, 1712, 2036, 2461, 4072, 4922, 8144, 9844, 11707, 19688, 23414, 39376, 46828, 54463, 93656, 108926, 187312, 217852, 435704, 871408, 1252649, 2505298, 5010596, 10021192, 20042384]

約数ペア:

[(1, 20042384), (2, 10021192), (4, 5010596), (8, 2505298), (16, 1252649), (23, 871408), (46, 435704), (92, 217852), (107, 187312), (184, 108926), (214, 93656), (368, 54463), (428, 46828), (509, 39376), (856, 23414), (1018, 19688), (1712, 11707), (2036, 9844), (2461, 8144), (4072, 4922)]