19431920

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4583}}^1$

素因数の和:4649

約数の個数: 40

約数和(自身を含む): 46041696

約数和(自身を除く): 26609776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4583, 9166, 18332, 22915, 36664, 45830, 73328, 91660, 183320, 242899, 366640, 485798, 971596, 1214495, 1943192, 2428990, 3886384, 4857980, 9715960, 19431920]

約数ペア:

[(1, 19431920), (2, 9715960), (4, 4857980), (5, 3886384), (8, 2428990), (10, 1943192), (16, 1214495), (20, 971596), (40, 485798), (53, 366640), (80, 242899), (106, 183320), (212, 91660), (265, 73328), (424, 45830), (530, 36664), (848, 22915), (1060, 18332), (2120, 9166), (4240, 4583)]