20490075

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{4793}}^1$

素因数の和:4828

約数の個数: 36

約数和(自身を含む): 38639640

約数和(自身を除く): 18149565

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 171, 225, 285, 475, 855, 1425, 4275, 4793, 14379, 23965, 43137, 71895, 91067, 119825, 215685, 273201, 359475, 455335, 819603, 1078425, 1366005, 2276675, 4098015, 6830025, 20490075]

約数ペア:

[(1, 20490075), (3, 6830025), (5, 4098015), (9, 2276675), (15, 1366005), (19, 1078425), (25, 819603), (45, 455335), (57, 359475), (75, 273201), (95, 215685), (171, 119825), (225, 91067), (285, 71895), (475, 43137), (855, 23965), (1425, 14379), (4275, 4793)]