28007235

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 53568000

約数和(自身を除く): 25560765

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 61, 95, 135, 171, 179, 183, 285, 305, 513, 537, 549, 855, 895, 915, 1159, 1611, 1647, 2565, 2685, 2745, 3401, 3477, 4833, 5795, 8055, 8235, 10203, 10431, 10919, 17005, 17385, 24165, 30609, 31293, 32757, 51015, 52155, 54595, 91827, 98271, 153045, 156465, 163785, 207461, 294813, 459135, 491355, 622383, 1037305, 1474065, 1867149, 3111915, 5601447, 9335745, 28007235]

約数ペア:

[(1, 28007235), (3, 9335745), (5, 5601447), (9, 3111915), (15, 1867149), (19, 1474065), (27, 1037305), (45, 622383), (57, 491355), (61, 459135), (95, 294813), (135, 207461), (171, 163785), (179, 156465), (183, 153045), (285, 98271), (305, 91827), (513, 54595), (537, 52155), (549, 51015), (855, 32757), (895, 31293), (915, 30609), (1159, 24165), (1611, 17385), (1647, 17005), (2565, 10919), (2685, 10431), (2745, 10203), (3401, 8235), (3477, 8055), (4833, 5795)]