1990725

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 3809280

約数和(自身を除く): 1818555

約数列:

[1, 3, 5, 11, 15, 19, 25, 33, 55, 57, 75, 95, 127, 165, 209, 275, 285, 381, 475, 627, 635, 825, 1045, 1397, 1425, 1905, 2413, 3135, 3175, 4191, 5225, 6985, 7239, 9525, 12065, 15675, 20955, 26543, 34925, 36195, 60325, 79629, 104775, 132715, 180975, 398145, 663575, 1990725]

約数ペア:

[(1, 1990725), (3, 663575), (5, 398145), (11, 180975), (15, 132715), (19, 104775), (25, 79629), (33, 60325), (55, 36195), (57, 34925), (75, 26543), (95, 20955), (127, 15675), (165, 12065), (209, 9525), (275, 7239), (285, 6985), (381, 5225), (475, 4191), (627, 3175), (635, 3135), (825, 2413), (1045, 1905), (1397, 1425)]