71217520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{80929}}^1$

素因数の和:80953

約数の個数: 40

約数和(自身を含む): 180635760

約数和(自身を除く): 109418240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 80929, 161858, 323716, 404645, 647432, 809290, 890219, 1294864, 1618580, 1780438, 3237160, 3560876, 4451095, 6474320, 7121752, 8902190, 14243504, 17804380, 35608760, 71217520]

約数ペア:

[(1, 71217520), (2, 35608760), (4, 17804380), (5, 14243504), (8, 8902190), (10, 7121752), (11, 6474320), (16, 4451095), (20, 3560876), (22, 3237160), (40, 1780438), (44, 1618580), (55, 1294864), (80, 890219), (88, 809290), (110, 647432), (176, 404645), (220, 323716), (440, 161858), (880, 80929)]