20454480

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28409}}^1$

素因数の和:28428

約数の個数: 60

約数和(自身を含む): 68695380

約数和(自身を除く): 48240900

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, 28409, 56818, 85227, 113636, 142045, 170454, 227272, 255681, 284090, 340908, 426135, 454544, 511362, 568180, 681816, 852270, 1022724, 1136360, 1278405, 1363632, 1704540, 2045448, 2272720, 2556810, 3409080, 4090896, 5113620, 6818160, 10227240, 20454480]

約数ペア:

[(1, 20454480), (2, 10227240), (3, 6818160), (4, 5113620), (5, 4090896), (6, 3409080), (8, 2556810), (9, 2272720), (10, 2045448), (12, 1704540), (15, 1363632), (16, 1278405), (18, 1136360), (20, 1022724), (24, 852270), (30, 681816), (36, 568180), (40, 511362), (45, 454544), (48, 426135), (60, 340908), (72, 284090), (80, 255681), (90, 227272), (120, 170454), (144, 142045), (180, 113636), (240, 85227), (360, 56818), (720, 28409)]