721731264

素因数分解:

$2^6\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^2\times {\mathrm{107}}^1$

素因数の和:227

約数の個数: 168

約数和(自身を含む): 2077151040

約数和(自身を除く): 1355419776

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 32, 38, 43, 48, 57, 64, 76, 86, 96, 107, 114, 129, 152, 172, 192, 214, 228, 258, 304, 321, 344, 428, 456, 516, 608, 642, 688, 817, 856, 912, 1032, 1216, 1284, 1376, 1634, 1712, 1824, 1849, 2033, 2064, 2451, 2568, 2752, 3268, 3424, 3648, 3698, 4066, 4128, 4601, 4902, 5136, 5547, 6099, 6536, 6848, 7396, 8132, 8256, 9202, 9804, 10272, 11094, 12198, 13072, 13803, 14792, 16264, 18404, 19608, 20544, 22188, 24396, 26144, 27606, 29584, 32528, 35131, 36808, 39216, 44376, 48792, 52288, 55212, 59168, 65056, 70262, 73616, 78432, 87419, 88752, 97584, 105393, 110424, 118336, 130112, 140524, 147232, 156864, 174838, 177504, 195168, 197843, 210786, 220848, 262257, 281048, 294464, 349676, 355008, 390336, 395686, 421572, 441696, 524514, 562096, 593529, 699352, 791372, 843144, 883392, 1049028, 1124192, 1187058, 1398704, 1582744, 1686288, 2098056, 2248384, 2374116, 2797408, 3165488, 3372576, 3759017, 4196112, 4748232, 5594816, 6330976, 6745152, 7518034, 8392224, 9496464, 11277051, 12661952, 15036068, 16784448, 18992928, 22554102, 30072136, 37985856, 45108204, 60144272, 90216408, 120288544, 180432816, 240577088, 360865632, 721731264]

約数ペア:

[(1, 721731264), (2, 360865632), (3, 240577088), (4, 180432816), (6, 120288544), (8, 90216408), (12, 60144272), (16, 45108204), (19, 37985856), (24, 30072136), (32, 22554102), (38, 18992928), (43, 16784448), (48, 15036068), (57, 12661952), (64, 11277051), (76, 9496464), (86, 8392224), (96, 7518034), (107, 6745152), (114, 6330976), (129, 5594816), (152, 4748232), (172, 4196112), (192, 3759017), (214, 3372576), (228, 3165488), (258, 2797408), (304, 2374116), (321, 2248384), (344, 2098056), (428, 1686288), (456, 1582744), (516, 1398704), (608, 1187058), (642, 1124192), (688, 1049028), (817, 883392), (856, 843144), (912, 791372), (1032, 699352), (1216, 593529), (1284, 562096), (1376, 524514), (1634, 441696), (1712, 421572), (1824, 395686), (1849, 390336), (2033, 355008), (2064, 349676), (2451, 294464), (2568, 281048), (2752, 262257), (3268, 220848), (3424, 210786), (3648, 197843), (3698, 195168), (4066, 177504), (4128, 174838), (4601, 156864), (4902, 147232), (5136, 140524), (5547, 130112), (6099, 118336), (6536, 110424), (6848, 105393), (7396, 97584), (8132, 88752), (8256, 87419), (9202, 78432), (9804, 73616), (10272, 70262), (11094, 65056), (12198, 59168), (13072, 55212), (13803, 52288), (14792, 48792), (16264, 44376), (18404, 39216), (19608, 36808), (20544, 35131), (22188, 32528), (24396, 29584), (26144, 27606)]