645787406

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{39829}}^1$

素因数の和:39920

約数の個数: 24

約数和(自身を含む): 1080667560

約数和(自身を除く): 434880154

約数列:

[1, 2, 11, 22, 67, 121, 134, 242, 737, 1474, 8107, 16214, 39829, 79658, 438119, 876238, 2668543, 4819309, 5337086, 9638618, 29353973, 58707946, 322893703, 645787406]

約数ペア:

[(1, 645787406), (2, 322893703), (11, 58707946), (22, 29353973), (67, 9638618), (121, 5337086), (134, 4819309), (242, 2668543), (737, 876238), (1474, 438119), (8107, 79658), (16214, 39829)]