16203975

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 28926720

約数和(自身を除く): 12722745

約数列:

[1, 3, 5, 15, 17, 25, 51, 71, 75, 85, 179, 213, 255, 355, 425, 537, 895, 1065, 1207, 1275, 1775, 2685, 3043, 3621, 4475, 5325, 6035, 9129, 12709, 13425, 15215, 18105, 30175, 38127, 45645, 63545, 76075, 90525, 190635, 216053, 228225, 317725, 648159, 953175, 1080265, 3240795, 5401325, 16203975]

約数ペア:

[(1, 16203975), (3, 5401325), (5, 3240795), (15, 1080265), (17, 953175), (25, 648159), (51, 317725), (71, 228225), (75, 216053), (85, 190635), (179, 90525), (213, 76075), (255, 63545), (355, 45645), (425, 38127), (537, 30175), (895, 18105), (1065, 15215), (1207, 13425), (1275, 12709), (1775, 9129), (2685, 6035), (3043, 5325), (3621, 4475)]