3881925

素因数分解:

$3^7\times 5^2\times {\mathrm{71}}^1$

素因数の和:102

約数の個数: 48

約数和(自身を含む): 7320960

約数和(自身を除く): 3439035

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 81, 135, 213, 225, 243, 355, 405, 639, 675, 729, 1065, 1215, 1775, 1917, 2025, 2187, 3195, 3645, 5325, 5751, 6075, 9585, 10935, 15975, 17253, 18225, 28755, 47925, 51759, 54675, 86265, 143775, 155277, 258795, 431325, 776385, 1293975, 3881925]

約数ペア:

[(1, 3881925), (3, 1293975), (5, 776385), (9, 431325), (15, 258795), (25, 155277), (27, 143775), (45, 86265), (71, 54675), (75, 51759), (81, 47925), (135, 28755), (213, 18225), (225, 17253), (243, 15975), (355, 10935), (405, 9585), (639, 6075), (675, 5751), (729, 5325), (1065, 3645), (1215, 3195), (1775, 2187), (1917, 2025)]