521308305

素因数分解:

$3^4\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:381

約数の個数: 120

約数和(自身を含む): 1101588840

約数和(自身を除く): 580280535

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 109, 135, 147, 189, 241, 245, 315, 327, 405, 441, 545, 567, 723, 735, 763, 945, 981, 1205, 1323, 1635, 1687, 2169, 2205, 2289, 2835, 2943, 3615, 3815, 3969, 4905, 5061, 5341, 6507, 6615, 6867, 8435, 8829, 10845, 11445, 11809, 14715, 15183, 16023, 19521, 19845, 20601, 25305, 26269, 26705, 32535, 34335, 35427, 44145, 45549, 48069, 59045, 61803, 75915, 78807, 80115, 97605, 103005, 106281, 131345, 136647, 144207, 177135, 183883, 227745, 236421, 240345, 309015, 318843, 394035, 432621, 531405, 551649, 683235, 709263, 721035, 919415, 956529, 1182105, 1287181, 1594215, 1654947, 2127789, 2163105, 2758245, 3546315, 3861543, 4782645, 4964841, 6435905, 8274735, 10638945, 11584629, 14894523, 19307715, 24824205, 34753887, 57923145, 74472615, 104261661, 173769435, 521308305]

約数ペア:

[(1, 521308305), (3, 173769435), (5, 104261661), (7, 74472615), (9, 57923145), (15, 34753887), (21, 24824205), (27, 19307715), (35, 14894523), (45, 11584629), (49, 10638945), (63, 8274735), (81, 6435905), (105, 4964841), (109, 4782645), (135, 3861543), (147, 3546315), (189, 2758245), (241, 2163105), (245, 2127789), (315, 1654947), (327, 1594215), (405, 1287181), (441, 1182105), (545, 956529), (567, 919415), (723, 721035), (735, 709263), (763, 683235), (945, 551649), (981, 531405), (1205, 432621), (1323, 394035), (1635, 318843), (1687, 309015), (2169, 240345), (2205, 236421), (2289, 227745), (2835, 183883), (2943, 177135), (3615, 144207), (3815, 136647), (3969, 131345), (4905, 106281), (5061, 103005), (5341, 97605), (6507, 80115), (6615, 78807), (6867, 75915), (8435, 61803), (8829, 59045), (10845, 48069), (11445, 45549), (11809, 44145), (14715, 35427), (15183, 34335), (16023, 32535), (19521, 26705), (19845, 26269), (20601, 25305)]