80797840

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9439}}^1$

素因数の和:9559

約数の個数: 40

約数和(自身を含む): 189630720

約数和(自身を除く): 108832880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 4280, 8560, 9439, 18878, 37756, 47195, 75512, 94390, 151024, 188780, 377560, 755120, 1009973, 2019946, 4039892, 5049865, 8079784, 10099730, 16159568, 20199460, 40398920, 80797840]

約数ペア:

[(1, 80797840), (2, 40398920), (4, 20199460), (5, 16159568), (8, 10099730), (10, 8079784), (16, 5049865), (20, 4039892), (40, 2019946), (80, 1009973), (107, 755120), (214, 377560), (428, 188780), (535, 151024), (856, 94390), (1070, 75512), (1712, 47195), (2140, 37756), (4280, 18878), (8560, 9439)]