1321533440

素因数分解:

$2^{16}\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:183

約数の個数: 136

約数和(自身を含む): 3287260680

約数和(自身を除く): 1965727240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 109, 128, 148, 160, 185, 218, 256, 296, 320, 370, 436, 512, 545, 592, 640, 740, 872, 1024, 1090, 1184, 1280, 1480, 1744, 2048, 2180, 2368, 2560, 2960, 3488, 4033, 4096, 4360, 4736, 5120, 5920, 6976, 8066, 8192, 8720, 9472, 10240, 11840, 13952, 16132, 16384, 17440, 18944, 20165, 20480, 23680, 27904, 32264, 32768, 34880, 37888, 40330, 40960, 47360, 55808, 64528, 65536, 69760, 75776, 80660, 81920, 94720, 111616, 129056, 139520, 151552, 161320, 163840, 189440, 223232, 258112, 279040, 303104, 322640, 327680, 378880, 446464, 516224, 558080, 606208, 645280, 757760, 892928, 1032448, 1116160, 1212416, 1290560, 1515520, 1785856, 2064896, 2232320, 2424832, 2581120, 3031040, 3571712, 4129792, 4464640, 5162240, 6062080, 7143424, 8259584, 8929280, 10324480, 12124160, 16519168, 17858560, 20648960, 33038336, 35717120, 41297920, 66076672, 82595840, 132153344, 165191680, 264306688, 330383360, 660766720, 1321533440]

約数ペア:

[(1, 1321533440), (2, 660766720), (4, 330383360), (5, 264306688), (8, 165191680), (10, 132153344), (16, 82595840), (20, 66076672), (32, 41297920), (37, 35717120), (40, 33038336), (64, 20648960), (74, 17858560), (80, 16519168), (109, 12124160), (128, 10324480), (148, 8929280), (160, 8259584), (185, 7143424), (218, 6062080), (256, 5162240), (296, 4464640), (320, 4129792), (370, 3571712), (436, 3031040), (512, 2581120), (545, 2424832), (592, 2232320), (640, 2064896), (740, 1785856), (872, 1515520), (1024, 1290560), (1090, 1212416), (1184, 1116160), (1280, 1032448), (1480, 892928), (1744, 757760), (2048, 645280), (2180, 606208), (2368, 558080), (2560, 516224), (2960, 446464), (3488, 378880), (4033, 327680), (4096, 322640), (4360, 303104), (4736, 279040), (5120, 258112), (5920, 223232), (6976, 189440), (8066, 163840), (8192, 161320), (8720, 151552), (9472, 139520), (10240, 129056), (11840, 111616), (13952, 94720), (16132, 81920), (16384, 80660), (17440, 75776), (18944, 69760), (20165, 65536), (20480, 64528), (23680, 55808), (27904, 47360), (32264, 40960), (32768, 40330), (34880, 37888)]