18888375

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1$

素因数の和:289

約数の個数: 64

約数和(自身を含む): 36241920

約数和(自身を除く): 17353545

約数列:

[1, 3, 5, 11, 15, 19, 25, 33, 55, 57, 75, 95, 125, 165, 209, 241, 275, 285, 375, 475, 627, 723, 825, 1045, 1205, 1375, 1425, 2375, 2651, 3135, 3615, 4125, 4579, 5225, 6025, 7125, 7953, 13255, 13737, 15675, 18075, 22895, 26125, 30125, 39765, 50369, 66275, 68685, 78375, 90375, 114475, 151107, 198825, 251845, 331375, 343425, 572375, 755535, 994125, 1259225, 1717125, 3777675, 6296125, 18888375]

約数ペア:

[(1, 18888375), (3, 6296125), (5, 3777675), (11, 1717125), (15, 1259225), (19, 994125), (25, 755535), (33, 572375), (55, 343425), (57, 331375), (75, 251845), (95, 198825), (125, 151107), (165, 114475), (209, 90375), (241, 78375), (275, 68685), (285, 66275), (375, 50369), (475, 39765), (627, 30125), (723, 26125), (825, 22895), (1045, 18075), (1205, 15675), (1375, 13737), (1425, 13255), (2375, 7953), (2651, 7125), (3135, 6025), (3615, 5225), (4125, 4579)]