206105920

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{311}}^1$

素因数の和:456

約数の個数: 112

約数和(自身を含む): 523036800

約数和(自身を除く): 316930880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 109, 152, 160, 190, 218, 304, 311, 320, 380, 436, 545, 608, 622, 760, 872, 1090, 1216, 1244, 1520, 1555, 1744, 2071, 2180, 2488, 3040, 3110, 3488, 4142, 4360, 4976, 5909, 6080, 6220, 6976, 8284, 8720, 9952, 10355, 11818, 12440, 16568, 17440, 19904, 20710, 23636, 24880, 29545, 33136, 33899, 34880, 41420, 47272, 49760, 59090, 66272, 67798, 82840, 94544, 99520, 118180, 132544, 135596, 165680, 169495, 189088, 236360, 271192, 331360, 338990, 378176, 472720, 542384, 644081, 662720, 677980, 945440, 1084768, 1288162, 1355960, 1890880, 2169536, 2576324, 2711920, 3220405, 5152648, 5423840, 6440810, 10305296, 10847680, 12881620, 20610592, 25763240, 41221184, 51526480, 103052960, 206105920]

約数ペア:

[(1, 206105920), (2, 103052960), (4, 51526480), (5, 41221184), (8, 25763240), (10, 20610592), (16, 12881620), (19, 10847680), (20, 10305296), (32, 6440810), (38, 5423840), (40, 5152648), (64, 3220405), (76, 2711920), (80, 2576324), (95, 2169536), (109, 1890880), (152, 1355960), (160, 1288162), (190, 1084768), (218, 945440), (304, 677980), (311, 662720), (320, 644081), (380, 542384), (436, 472720), (545, 378176), (608, 338990), (622, 331360), (760, 271192), (872, 236360), (1090, 189088), (1216, 169495), (1244, 165680), (1520, 135596), (1555, 132544), (1744, 118180), (2071, 99520), (2180, 94544), (2488, 82840), (3040, 67798), (3110, 66272), (3488, 59090), (4142, 49760), (4360, 47272), (4976, 41420), (5909, 34880), (6080, 33899), (6220, 33136), (6976, 29545), (8284, 24880), (8720, 23636), (9952, 20710), (10355, 19904), (11818, 17440), (12440, 16568)]