81260028

素因数分解:

$2^2\times 3^2\times {\mathrm{569}}^1\times {\mathrm{3967}}^1$

素因数の和:4546

約数の個数: 36

約数和(自身を含む): 205820160

約数和(自身を除く): 124560132

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 569, 1138, 1707, 2276, 3414, 3967, 5121, 6828, 7934, 10242, 11901, 15868, 20484, 23802, 35703, 47604, 71406, 142812, 2257223, 4514446, 6771669, 9028892, 13543338, 20315007, 27086676, 40630014, 81260028]

約数ペア:

[(1, 81260028), (2, 40630014), (3, 27086676), (4, 20315007), (6, 13543338), (9, 9028892), (12, 6771669), (18, 4514446), (36, 2257223), (569, 142812), (1138, 71406), (1707, 47604), (2276, 35703), (3414, 23802), (3967, 20484), (5121, 15868), (6828, 11901), (7934, 10242)]