31221720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{28909}}^1$

素因数の和:28929

約数の個数: 64

約数和(自身を含む): 104076000

約数和(自身を除く): 72854280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 28909, 57818, 86727, 115636, 144545, 173454, 231272, 260181, 289090, 346908, 433635, 520362, 578180, 693816, 780543, 867270, 1040724, 1156360, 1300905, 1561086, 1734540, 2081448, 2601810, 3122172, 3469080, 3902715, 5203620, 6244344, 7805430, 10407240, 15610860, 31221720]

約数ペア:

[(1, 31221720), (2, 15610860), (3, 10407240), (4, 7805430), (5, 6244344), (6, 5203620), (8, 3902715), (9, 3469080), (10, 3122172), (12, 2601810), (15, 2081448), (18, 1734540), (20, 1561086), (24, 1300905), (27, 1156360), (30, 1040724), (36, 867270), (40, 780543), (45, 693816), (54, 578180), (60, 520362), (72, 433635), (90, 346908), (108, 289090), (120, 260181), (135, 231272), (180, 173454), (216, 144545), (270, 115636), (360, 86727), (540, 57818), (1080, 28909)]