1380825

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:71

約数の個数: 54

約数和(自身を含む): 2763774

約数和(自身を除く): 1382949

約数列:

[1, 3, 5, 9, 15, 17, 19, 25, 45, 51, 57, 75, 85, 95, 153, 171, 225, 255, 285, 323, 361, 425, 475, 765, 855, 969, 1083, 1275, 1425, 1615, 1805, 2907, 3249, 3825, 4275, 4845, 5415, 6137, 8075, 9025, 14535, 16245, 18411, 24225, 27075, 30685, 55233, 72675, 81225, 92055, 153425, 276165, 460275, 1380825]

約数ペア:

[(1, 1380825), (3, 460275), (5, 276165), (9, 153425), (15, 92055), (17, 81225), (19, 72675), (25, 55233), (45, 30685), (51, 27075), (57, 24225), (75, 18411), (85, 16245), (95, 14535), (153, 9025), (171, 8075), (225, 6137), (255, 5415), (285, 4845), (323, 4275), (361, 3825), (425, 3249), (475, 2907), (765, 1805), (855, 1615), (969, 1425), (1083, 1275)]