28216755

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:330

約数の個数: 80

約数和(自身を含む): 59590080

約数和(自身を除く): 31373325

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 37, 45, 63, 81, 105, 111, 135, 185, 189, 259, 269, 315, 333, 405, 555, 567, 777, 807, 945, 999, 1295, 1345, 1665, 1883, 2331, 2421, 2835, 2997, 3885, 4035, 4995, 5649, 6993, 7263, 9415, 9953, 11655, 12105, 14985, 16947, 20979, 21789, 28245, 29859, 34965, 36315, 49765, 50841, 69671, 84735, 89577, 104895, 108945, 149295, 152523, 209013, 254205, 268731, 348355, 447885, 627039, 762615, 806193, 1045065, 1343655, 1881117, 3135195, 4030965, 5643351, 9405585, 28216755]

約数ペア:

[(1, 28216755), (3, 9405585), (5, 5643351), (7, 4030965), (9, 3135195), (15, 1881117), (21, 1343655), (27, 1045065), (35, 806193), (37, 762615), (45, 627039), (63, 447885), (81, 348355), (105, 268731), (111, 254205), (135, 209013), (185, 152523), (189, 149295), (259, 108945), (269, 104895), (315, 89577), (333, 84735), (405, 69671), (555, 50841), (567, 49765), (777, 36315), (807, 34965), (945, 29859), (999, 28245), (1295, 21789), (1345, 20979), (1665, 16947), (1883, 14985), (2331, 12105), (2421, 11655), (2835, 9953), (2997, 9415), (3885, 7263), (4035, 6993), (4995, 5649)]