31170015

素因数分解:

$3^4\times 5^1\times {\mathrm{76963}}^1$

素因数の和:76980

約数の個数: 20

約数和(自身を含む): 55875864

約数和(自身を除く): 24705849

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 76963, 230889, 384815, 692667, 1154445, 2078001, 3463335, 6234003, 10390005, 31170015]

約数ペア:

[(1, 31170015), (3, 10390005), (5, 6234003), (9, 3463335), (15, 2078001), (27, 1154445), (45, 692667), (81, 384815), (135, 230889), (405, 76963)]