81783520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:213

約数の個数: 192

約数和(自身を含む): 245379456

約数和(自身を除く): 163595936

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 41, 52, 56, 65, 70, 80, 82, 91, 104, 112, 130, 137, 140, 160, 164, 182, 205, 208, 224, 260, 274, 280, 287, 328, 364, 410, 416, 455, 520, 533, 548, 560, 574, 656, 685, 728, 820, 910, 959, 1040, 1066, 1096, 1120, 1148, 1312, 1370, 1435, 1456, 1640, 1781, 1820, 1918, 2080, 2132, 2192, 2296, 2665, 2740, 2870, 2912, 3280, 3562, 3640, 3731, 3836, 4264, 4384, 4592, 4795, 5330, 5480, 5617, 5740, 6560, 7124, 7280, 7462, 7672, 8528, 8905, 9184, 9590, 10660, 10960, 11234, 11480, 12467, 14248, 14560, 14924, 15344, 17056, 17810, 18655, 19180, 21320, 21920, 22468, 22960, 24934, 28085, 28496, 29848, 30688, 35620, 37310, 38360, 39319, 42640, 44936, 45920, 49868, 56170, 56992, 59696, 62335, 71240, 73021, 74620, 76720, 78638, 85280, 89872, 99736, 112340, 119392, 124670, 142480, 146042, 149240, 153440, 157276, 179744, 196595, 199472, 224680, 249340, 284960, 292084, 298480, 314552, 365105, 393190, 398944, 449360, 498680, 511147, 584168, 596960, 629104, 730210, 786380, 898720, 997360, 1022294, 1168336, 1258208, 1460420, 1572760, 1994720, 2044588, 2336672, 2555735, 2920840, 3145520, 4089176, 5111470, 5841680, 6291040, 8178352, 10222940, 11683360, 16356704, 20445880, 40891760, 81783520]

約数ペア:

[(1, 81783520), (2, 40891760), (4, 20445880), (5, 16356704), (7, 11683360), (8, 10222940), (10, 8178352), (13, 6291040), (14, 5841680), (16, 5111470), (20, 4089176), (26, 3145520), (28, 2920840), (32, 2555735), (35, 2336672), (40, 2044588), (41, 1994720), (52, 1572760), (56, 1460420), (65, 1258208), (70, 1168336), (80, 1022294), (82, 997360), (91, 898720), (104, 786380), (112, 730210), (130, 629104), (137, 596960), (140, 584168), (160, 511147), (164, 498680), (182, 449360), (205, 398944), (208, 393190), (224, 365105), (260, 314552), (274, 298480), (280, 292084), (287, 284960), (328, 249340), (364, 224680), (410, 199472), (416, 196595), (455, 179744), (520, 157276), (533, 153440), (548, 149240), (560, 146042), (574, 142480), (656, 124670), (685, 119392), (728, 112340), (820, 99736), (910, 89872), (959, 85280), (1040, 78638), (1066, 76720), (1096, 74620), (1120, 73021), (1148, 71240), (1312, 62335), (1370, 59696), (1435, 56992), (1456, 56170), (1640, 49868), (1781, 45920), (1820, 44936), (1918, 42640), (2080, 39319), (2132, 38360), (2192, 37310), (2296, 35620), (2665, 30688), (2740, 29848), (2870, 28496), (2912, 28085), (3280, 24934), (3562, 22960), (3640, 22468), (3731, 21920), (3836, 21320), (4264, 19180), (4384, 18655), (4592, 17810), (4795, 17056), (5330, 15344), (5480, 14924), (5617, 14560), (5740, 14248), (6560, 12467), (7124, 11480), (7280, 11234), (7462, 10960), (7672, 10660), (8528, 9590), (8905, 9184)]