20814480

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28909}}^1$

素因数の和:28928

約数の個数: 60

約数和(自身を含む): 69904380

約数和(自身を除く): 49089900

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28909, 57818, 86727, 115636, 144545, 173454, 231272, 260181, 289090, 346908, 433635, 462544, 520362, 578180, 693816, 867270, 1040724, 1156360, 1300905, 1387632, 1734540, 2081448, 2312720, 2601810, 3469080, 4162896, 5203620, 6938160, 10407240, 20814480]

約数ペア:

[(1, 20814480), (2, 10407240), (3, 6938160), (4, 5203620), (5, 4162896), (6, 3469080), (8, 2601810), (9, 2312720), (10, 2081448), (12, 1734540), (15, 1387632), (16, 1300905), (18, 1156360), (20, 1040724), (24, 867270), (30, 693816), (36, 578180), (40, 520362), (45, 462544), (48, 433635), (60, 346908), (72, 289090), (80, 260181), (90, 231272), (120, 173454), (144, 144545), (180, 115636), (240, 86727), (360, 57818), (720, 28909)]