78172020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{144763}}^1$

素因数の和:144781

約数の個数: 48

約数和(自身を含む): 243203520

約数和(自身を除く): 165031500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 144763, 289526, 434289, 579052, 723815, 868578, 1302867, 1447630, 1737156, 2171445, 2605734, 2895260, 3908601, 4342890, 5211468, 6514335, 7817202, 8685780, 13028670, 15634404, 19543005, 26057340, 39086010, 78172020]

約数ペア:

[(1, 78172020), (2, 39086010), (3, 26057340), (4, 19543005), (5, 15634404), (6, 13028670), (9, 8685780), (10, 7817202), (12, 6514335), (15, 5211468), (18, 4342890), (20, 3908601), (27, 2895260), (30, 2605734), (36, 2171445), (45, 1737156), (54, 1447630), (60, 1302867), (90, 868578), (108, 723815), (135, 579052), (180, 434289), (270, 289526), (540, 144763)]