28745955

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1601}}^1$

素因数の和:1641

約数の個数: 64

約数和(自身を含む): 61516800

約数和(自身を除く): 32770845

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 57, 63, 95, 105, 133, 135, 171, 189, 285, 315, 399, 513, 665, 855, 945, 1197, 1601, 1995, 2565, 3591, 4803, 5985, 8005, 11207, 14409, 17955, 24015, 30419, 33621, 43227, 56035, 72045, 91257, 100863, 152095, 168105, 212933, 216135, 273771, 302589, 456285, 504315, 638799, 821313, 1064665, 1368855, 1512945, 1916397, 3193995, 4106565, 5749191, 9581985, 28745955]

約数ペア:

[(1, 28745955), (3, 9581985), (5, 5749191), (7, 4106565), (9, 3193995), (15, 1916397), (19, 1512945), (21, 1368855), (27, 1064665), (35, 821313), (45, 638799), (57, 504315), (63, 456285), (95, 302589), (105, 273771), (133, 216135), (135, 212933), (171, 168105), (189, 152095), (285, 100863), (315, 91257), (399, 72045), (513, 56035), (665, 43227), (855, 33621), (945, 30419), (1197, 24015), (1601, 17955), (1995, 14409), (2565, 11207), (3591, 8005), (4803, 5985)]