80385040

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21379}}^1$

素因数の和:21439

約数の個数: 40

約数和(自身を含む): 190880640

約数和(自身を除く): 110495600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 21379, 42758, 85516, 106895, 171032, 213790, 342064, 427580, 855160, 1004813, 1710320, 2009626, 4019252, 5024065, 8038504, 10048130, 16077008, 20096260, 40192520, 80385040]

約数ペア:

[(1, 80385040), (2, 40192520), (4, 20096260), (5, 16077008), (8, 10048130), (10, 8038504), (16, 5024065), (20, 4019252), (40, 2009626), (47, 1710320), (80, 1004813), (94, 855160), (188, 427580), (235, 342064), (376, 213790), (470, 171032), (752, 106895), (940, 85516), (1880, 42758), (3760, 21379)]