661403808

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:276

約数の個数: 216

約数和(自身を含む): 2071899648

約数和(自身を除く): 1410495840

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 107, 117, 127, 144, 156, 169, 208, 214, 234, 254, 288, 312, 321, 338, 381, 416, 428, 468, 507, 508, 624, 642, 676, 762, 856, 936, 963, 1014, 1016, 1143, 1248, 1284, 1352, 1391, 1521, 1524, 1651, 1712, 1872, 1926, 2028, 2032, 2286, 2568, 2704, 2782, 3042, 3048, 3302, 3424, 3744, 3852, 4056, 4064, 4173, 4572, 4953, 5136, 5408, 5564, 6084, 6096, 6604, 7704, 8112, 8346, 9144, 9906, 10272, 11128, 12168, 12192, 12519, 13208, 13589, 14859, 15408, 16224, 16692, 18083, 18288, 19812, 21463, 22256, 24336, 25038, 26416, 27178, 29718, 30816, 33384, 36166, 36576, 39624, 40767, 42926, 44512, 48672, 50076, 52832, 54249, 54356, 59436, 64389, 66768, 72332, 79248, 81534, 85852, 100152, 108498, 108712, 118872, 122301, 128778, 133536, 144664, 158496, 162747, 163068, 171704, 176657, 193167, 200304, 216996, 217424, 237744, 244602, 257556, 289328, 325494, 326136, 343408, 353314, 386334, 400608, 433992, 434848, 475488, 489204, 515112, 529971, 578656, 650988, 652272, 686816, 706628, 772668, 867984, 978408, 1030224, 1059942, 1301976, 1304544, 1413256, 1545336, 1589913, 1735968, 1956816, 2060448, 2119884, 2296541, 2603952, 2826512, 3090672, 3179826, 3913632, 4239768, 4593082, 5207904, 5653024, 6181344, 6359652, 6889623, 8479536, 9186164, 12719304, 13779246, 16959072, 18372328, 20668869, 25438608, 27558492, 36744656, 41337738, 50877216, 55116984, 73489312, 82675476, 110233968, 165350952, 220467936, 330701904, 661403808]

約数ペア:

[(1, 661403808), (2, 330701904), (3, 220467936), (4, 165350952), (6, 110233968), (8, 82675476), (9, 73489312), (12, 55116984), (13, 50877216), (16, 41337738), (18, 36744656), (24, 27558492), (26, 25438608), (32, 20668869), (36, 18372328), (39, 16959072), (48, 13779246), (52, 12719304), (72, 9186164), (78, 8479536), (96, 6889623), (104, 6359652), (107, 6181344), (117, 5653024), (127, 5207904), (144, 4593082), (156, 4239768), (169, 3913632), (208, 3179826), (214, 3090672), (234, 2826512), (254, 2603952), (288, 2296541), (312, 2119884), (321, 2060448), (338, 1956816), (381, 1735968), (416, 1589913), (428, 1545336), (468, 1413256), (507, 1304544), (508, 1301976), (624, 1059942), (642, 1030224), (676, 978408), (762, 867984), (856, 772668), (936, 706628), (963, 686816), (1014, 652272), (1016, 650988), (1143, 578656), (1248, 529971), (1284, 515112), (1352, 489204), (1391, 475488), (1521, 434848), (1524, 433992), (1651, 400608), (1712, 386334), (1872, 353314), (1926, 343408), (2028, 326136), (2032, 325494), (2286, 289328), (2568, 257556), (2704, 244602), (2782, 237744), (3042, 217424), (3048, 216996), (3302, 200304), (3424, 193167), (3744, 176657), (3852, 171704), (4056, 163068), (4064, 162747), (4173, 158496), (4572, 144664), (4953, 133536), (5136, 128778), (5408, 122301), (5564, 118872), (6084, 108712), (6096, 108498), (6604, 100152), (7704, 85852), (8112, 81534), (8346, 79248), (9144, 72332), (9906, 66768), (10272, 64389), (11128, 59436), (12168, 54356), (12192, 54249), (12519, 52832), (13208, 50076), (13589, 48672), (14859, 44512), (15408, 42926), (16224, 40767), (16692, 39624), (18083, 36576), (18288, 36166), (19812, 33384), (21463, 30816), (22256, 29718), (24336, 27178), (25038, 26416)]