81319755

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{547}}^1$

素因数の和:636

約数の個数: 64

約数和(自身を含む): 153404928

約数和(自身を除く): 72085173

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 53, 55, 85, 159, 165, 187, 255, 265, 547, 561, 583, 795, 901, 935, 1641, 1749, 2703, 2735, 2805, 2915, 4505, 6017, 8205, 8745, 9299, 9911, 13515, 18051, 27897, 28991, 29733, 30085, 46495, 49555, 86973, 90255, 102289, 139485, 144955, 148665, 306867, 318901, 434865, 492847, 511445, 956703, 1478541, 1534335, 1594505, 2464235, 4783515, 5421317, 7392705, 16263951, 27106585, 81319755]

約数ペア:

[(1, 81319755), (3, 27106585), (5, 16263951), (11, 7392705), (15, 5421317), (17, 4783515), (33, 2464235), (51, 1594505), (53, 1534335), (55, 1478541), (85, 956703), (159, 511445), (165, 492847), (187, 434865), (255, 318901), (265, 306867), (547, 148665), (561, 144955), (583, 139485), (795, 102289), (901, 90255), (935, 86973), (1641, 49555), (1749, 46495), (2703, 30085), (2735, 29733), (2805, 28991), (2915, 27897), (4505, 18051), (6017, 13515), (8205, 9911), (8745, 9299)]