19928810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{7877}}^1$

素因数の和:7918

約数の個数: 32

約数和(自身を含む): 40839552

約数和(自身を除く): 20910742

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 7877, 15754, 39385, 78770, 86647, 173294, 181171, 362342, 433235, 866470, 905855, 1811710, 1992881, 3985762, 9964405, 19928810]

約数ペア:

[(1, 19928810), (2, 9964405), (5, 3985762), (10, 1992881), (11, 1811710), (22, 905855), (23, 866470), (46, 433235), (55, 362342), (110, 181171), (115, 173294), (230, 86647), (253, 78770), (506, 39385), (1265, 15754), (2530, 7877)]