81308025

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{733}}^1$

素因数の和:795

約数の個数: 72

約数和(自身を含む): 159733080

約数和(自身を除く): 78425055

約数列:

[1, 3, 5, 9, 15, 17, 25, 29, 45, 51, 75, 85, 87, 145, 153, 225, 255, 261, 425, 435, 493, 725, 733, 765, 1275, 1305, 1479, 2175, 2199, 2465, 3665, 3825, 4437, 6525, 6597, 7395, 10995, 12325, 12461, 18325, 21257, 22185, 32985, 36975, 37383, 54975, 62305, 63771, 106285, 110925, 112149, 164925, 186915, 191313, 311525, 318855, 361369, 531425, 560745, 934575, 956565, 1084107, 1594275, 1806845, 2803725, 3252321, 4782825, 5420535, 9034225, 16261605, 27102675, 81308025]

約数ペア:

[(1, 81308025), (3, 27102675), (5, 16261605), (9, 9034225), (15, 5420535), (17, 4782825), (25, 3252321), (29, 2803725), (45, 1806845), (51, 1594275), (75, 1084107), (85, 956565), (87, 934575), (145, 560745), (153, 531425), (225, 361369), (255, 318855), (261, 311525), (425, 191313), (435, 186915), (493, 164925), (725, 112149), (733, 110925), (765, 106285), (1275, 63771), (1305, 62305), (1479, 54975), (2175, 37383), (2199, 36975), (2465, 32985), (3665, 22185), (3825, 21257), (4437, 18325), (6525, 12461), (6597, 12325), (7395, 10995)]