28227825

素因数分解:

$3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 96

約数和(自身を含む): 57139200

約数和(自身を除く): 28911375

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 31, 45, 57, 71, 75, 93, 95, 135, 155, 171, 213, 225, 279, 285, 355, 465, 475, 513, 589, 639, 675, 775, 837, 855, 1065, 1349, 1395, 1425, 1767, 1775, 1917, 2201, 2325, 2565, 2945, 3195, 4047, 4185, 4275, 5301, 5325, 6603, 6745, 6975, 8835, 9585, 11005, 12141, 12825, 14725, 15903, 15975, 19809, 20235, 20925, 26505, 33015, 33725, 36423, 41819, 44175, 47925, 55025, 59427, 60705, 79515, 99045, 101175, 125457, 132525, 165075, 182115, 209095, 297135, 303525, 376371, 397575, 495225, 627285, 910575, 1045475, 1129113, 1485675, 1881855, 3136425, 5645565, 9409275, 28227825]

約数ペア:

[(1, 28227825), (3, 9409275), (5, 5645565), (9, 3136425), (15, 1881855), (19, 1485675), (25, 1129113), (27, 1045475), (31, 910575), (45, 627285), (57, 495225), (71, 397575), (75, 376371), (93, 303525), (95, 297135), (135, 209095), (155, 182115), (171, 165075), (213, 132525), (225, 125457), (279, 101175), (285, 99045), (355, 79515), (465, 60705), (475, 59427), (513, 55025), (589, 47925), (639, 44175), (675, 41819), (775, 36423), (837, 33725), (855, 33015), (1065, 26505), (1349, 20925), (1395, 20235), (1425, 19809), (1767, 15975), (1775, 15903), (1917, 14725), (2201, 12825), (2325, 12141), (2565, 11005), (2945, 9585), (3195, 8835), (4047, 6975), (4185, 6745), (4275, 6603), (5301, 5325)]