15742125

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{1999}}^1$

素因数の和:2027

約数の個数: 48

約数和(自身を含む): 32448000

約数和(自身を除く): 16705875

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 125, 175, 225, 315, 375, 525, 875, 1125, 1575, 1999, 2625, 5997, 7875, 9995, 13993, 17991, 29985, 41979, 49975, 69965, 89955, 125937, 149925, 209895, 249875, 349825, 449775, 629685, 749625, 1049475, 1749125, 2248875, 3148425, 5247375, 15742125]

約数ペア:

[(1, 15742125), (3, 5247375), (5, 3148425), (7, 2248875), (9, 1749125), (15, 1049475), (21, 749625), (25, 629685), (35, 449775), (45, 349825), (63, 249875), (75, 209895), (105, 149925), (125, 125937), (175, 89955), (225, 69965), (315, 49975), (375, 41979), (525, 29985), (875, 17991), (1125, 13993), (1575, 9995), (1999, 7875), (2625, 5997)]