20889075

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 36961920

約数和(自身を除く): 16072845

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 107, 137, 285, 321, 411, 475, 535, 685, 1425, 1605, 2033, 2055, 2603, 2675, 3425, 6099, 7809, 8025, 10165, 10275, 13015, 14659, 30495, 39045, 43977, 50825, 65075, 73295, 152475, 195225, 219885, 278521, 366475, 835563, 1099425, 1392605, 4177815, 6963025, 20889075]

約数ペア:

[(1, 20889075), (3, 6963025), (5, 4177815), (15, 1392605), (19, 1099425), (25, 835563), (57, 366475), (75, 278521), (95, 219885), (107, 195225), (137, 152475), (285, 73295), (321, 65075), (411, 50825), (475, 43977), (535, 39045), (685, 30495), (1425, 14659), (1605, 13015), (2033, 10275), (2055, 10165), (2603, 8025), (2675, 7809), (3425, 6099)]