2147475

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 4106880

約数和(自身を除く): 1959405

約数列:

[1, 3, 5, 11, 15, 19, 25, 33, 55, 57, 75, 95, 137, 165, 209, 275, 285, 411, 475, 627, 685, 825, 1045, 1425, 1507, 2055, 2603, 3135, 3425, 4521, 5225, 7535, 7809, 10275, 13015, 15675, 22605, 28633, 37675, 39045, 65075, 85899, 113025, 143165, 195225, 429495, 715825, 2147475]

約数ペア:

[(1, 2147475), (3, 715825), (5, 429495), (11, 195225), (15, 143165), (19, 113025), (25, 85899), (33, 65075), (55, 39045), (57, 37675), (75, 28633), (95, 22605), (137, 15675), (165, 13015), (209, 10275), (275, 7809), (285, 7535), (411, 5225), (475, 4521), (627, 3425), (685, 3135), (825, 2603), (1045, 2055), (1425, 1507)]