20145361540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{129419}}^1$

素因数の和:129652

約数の個数: 48

約数和(自身を含む): 43528605120

約数和(自身を除く): 23383243580

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 181, 215, 362, 430, 724, 860, 905, 1810, 3620, 7783, 15566, 31132, 38915, 77830, 129419, 155660, 258838, 517676, 647095, 1294190, 2588380, 5565017, 11130034, 22260068, 23424839, 27825085, 46849678, 55650170, 93699356, 111300340, 117124195, 234248390, 468496780, 1007268077, 2014536154, 4029072308, 5036340385, 10072680770, 20145361540]

約数ペア:

[(1, 20145361540), (2, 10072680770), (4, 5036340385), (5, 4029072308), (10, 2014536154), (20, 1007268077), (43, 468496780), (86, 234248390), (172, 117124195), (181, 111300340), (215, 93699356), (362, 55650170), (430, 46849678), (724, 27825085), (860, 23424839), (905, 22260068), (1810, 11130034), (3620, 5565017), (7783, 2588380), (15566, 1294190), (31132, 647095), (38915, 517676), (77830, 258838), (129419, 155660)]