28723310

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{73}}^2$

素因数の和:178

約数の個数: 72

約数和(自身を含む): 66521736

約数和(自身を除く): 37798426

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 73, 77, 98, 110, 146, 154, 245, 365, 385, 490, 511, 539, 730, 770, 803, 1022, 1078, 1606, 2555, 2695, 3577, 4015, 5110, 5329, 5390, 5621, 7154, 8030, 10658, 11242, 17885, 26645, 28105, 35770, 37303, 39347, 53290, 56210, 58619, 74606, 78694, 117238, 186515, 196735, 261121, 293095, 373030, 393470, 410333, 522242, 586190, 820666, 1305605, 2051665, 2611210, 2872331, 4103330, 5744662, 14361655, 28723310]

約数ペア:

[(1, 28723310), (2, 14361655), (5, 5744662), (7, 4103330), (10, 2872331), (11, 2611210), (14, 2051665), (22, 1305605), (35, 820666), (49, 586190), (55, 522242), (70, 410333), (73, 393470), (77, 373030), (98, 293095), (110, 261121), (146, 196735), (154, 186515), (245, 117238), (365, 78694), (385, 74606), (490, 58619), (511, 56210), (539, 53290), (730, 39347), (770, 37303), (803, 35770), (1022, 28105), (1078, 26645), (1606, 17885), (2555, 11242), (2695, 10658), (3577, 8030), (4015, 7154), (5110, 5621), (5329, 5390)]