78680403

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{57139}}^1$

素因数の和:57168

約数の個数: 20

約数和(自身を含む): 124450920

約数和(自身を除く): 45770517

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 57139, 171417, 514251, 971363, 1542753, 2914089, 4628259, 8742267, 26226801, 78680403]

約数ペア:

[(1, 78680403), (3, 26226801), (9, 8742267), (17, 4628259), (27, 2914089), (51, 1542753), (81, 971363), (153, 514251), (459, 171417), (1377, 57139)]