208173105

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:220

約数の個数: 128

約数和(自身を含む): 446054400

約数和(自身を除く): 237881295

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 43, 45, 47, 63, 105, 109, 129, 135, 141, 189, 215, 235, 301, 315, 327, 329, 387, 423, 545, 645, 705, 763, 903, 945, 981, 987, 1161, 1269, 1505, 1635, 1645, 1935, 2021, 2115, 2289, 2709, 2943, 2961, 3815, 4515, 4687, 4905, 4935, 5123, 5805, 6063, 6345, 6867, 8127, 8883, 10105, 11445, 13545, 14061, 14147, 14715, 14805, 15369, 18189, 20601, 23435, 25615, 30315, 32809, 34335, 35861, 40635, 42183, 42441, 44415, 46107, 54567, 70305, 70735, 76845, 90945, 98427, 103005, 107583, 126549, 127323, 138321, 164045, 179305, 210915, 212205, 220289, 230535, 272835, 295281, 322749, 381969, 492135, 537915, 632745, 636615, 660867, 691605, 885843, 968247, 1101445, 1476405, 1542023, 1613745, 1909845, 1982601, 3304335, 4429215, 4626069, 4841235, 5947803, 7710115, 9913005, 13878207, 23130345, 29739015, 41634621, 69391035, 208173105]

約数ペア:

[(1, 208173105), (3, 69391035), (5, 41634621), (7, 29739015), (9, 23130345), (15, 13878207), (21, 9913005), (27, 7710115), (35, 5947803), (43, 4841235), (45, 4626069), (47, 4429215), (63, 3304335), (105, 1982601), (109, 1909845), (129, 1613745), (135, 1542023), (141, 1476405), (189, 1101445), (215, 968247), (235, 885843), (301, 691605), (315, 660867), (327, 636615), (329, 632745), (387, 537915), (423, 492135), (545, 381969), (645, 322749), (705, 295281), (763, 272835), (903, 230535), (945, 220289), (981, 212205), (987, 210915), (1161, 179305), (1269, 164045), (1505, 138321), (1635, 127323), (1645, 126549), (1935, 107583), (2021, 103005), (2115, 98427), (2289, 90945), (2709, 76845), (2943, 70735), (2961, 70305), (3815, 54567), (4515, 46107), (4687, 44415), (4905, 42441), (4935, 42183), (5123, 40635), (5805, 35861), (6063, 34335), (6345, 32809), (6867, 30315), (8127, 25615), (8883, 23435), (10105, 20601), (11445, 18189), (13545, 15369), (14061, 14805), (14147, 14715)]