19739320

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9311}}^1$

素因数の和:9375

約数の個数: 32

約数和(自身を含む): 45256320

約数和(自身を除く): 25517000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 9311, 18622, 37244, 46555, 74488, 93110, 186220, 372440, 493483, 986966, 1973932, 2467415, 3947864, 4934830, 9869660, 19739320]

約数ペア:

[(1, 19739320), (2, 9869660), (4, 4934830), (5, 3947864), (8, 2467415), (10, 1973932), (20, 986966), (40, 493483), (53, 372440), (106, 186220), (212, 93110), (265, 74488), (424, 46555), (530, 37244), (1060, 18622), (2120, 9311)]