28510785

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:176

約数の個数: 80

約数和(自身を含む): 55983312

約数和(自身を除く): 27472527

約数列:

[1, 3, 5, 9, 15, 17, 27, 41, 45, 51, 81, 85, 101, 123, 135, 153, 205, 255, 303, 369, 405, 459, 505, 615, 697, 765, 909, 1107, 1377, 1515, 1717, 1845, 2091, 2295, 2727, 3321, 3485, 4141, 4545, 5151, 5535, 6273, 6885, 8181, 8585, 10455, 12423, 13635, 15453, 16605, 18819, 20705, 25755, 31365, 37269, 40905, 46359, 56457, 62115, 70397, 77265, 94095, 111807, 139077, 186345, 211191, 231795, 282285, 335421, 351985, 559035, 633573, 695385, 1055955, 1677105, 1900719, 3167865, 5702157, 9503595, 28510785]

約数ペア:

[(1, 28510785), (3, 9503595), (5, 5702157), (9, 3167865), (15, 1900719), (17, 1677105), (27, 1055955), (41, 695385), (45, 633573), (51, 559035), (81, 351985), (85, 335421), (101, 282285), (123, 231795), (135, 211191), (153, 186345), (205, 139077), (255, 111807), (303, 94095), (369, 77265), (405, 70397), (459, 62115), (505, 56457), (615, 46359), (697, 40905), (765, 37269), (909, 31365), (1107, 25755), (1377, 20705), (1515, 18819), (1717, 16605), (1845, 15453), (2091, 13635), (2295, 12423), (2727, 10455), (3321, 8585), (3485, 8181), (4141, 6885), (4545, 6273), (5151, 5535)]