778839920

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1\times {\mathrm{691}}^1$

素因数の和:970

約数の個数: 80

約数和(自身を含む): 1847789472

約数和(自身を除く): 1068949552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 193, 292, 365, 386, 584, 691, 730, 772, 965, 1168, 1382, 1460, 1544, 1930, 2764, 2920, 3088, 3455, 3860, 5528, 5840, 6910, 7720, 11056, 13820, 14089, 15440, 27640, 28178, 50443, 55280, 56356, 70445, 100886, 112712, 133363, 140890, 201772, 225424, 252215, 266726, 281780, 403544, 504430, 533452, 563560, 666815, 807088, 1008860, 1066904, 1127120, 1333630, 2017720, 2133808, 2667260, 4035440, 5334520, 9735499, 10669040, 19470998, 38941996, 48677495, 77883992, 97354990, 155767984, 194709980, 389419960, 778839920]

約数ペア:

[(1, 778839920), (2, 389419960), (4, 194709980), (5, 155767984), (8, 97354990), (10, 77883992), (16, 48677495), (20, 38941996), (40, 19470998), (73, 10669040), (80, 9735499), (146, 5334520), (193, 4035440), (292, 2667260), (365, 2133808), (386, 2017720), (584, 1333630), (691, 1127120), (730, 1066904), (772, 1008860), (965, 807088), (1168, 666815), (1382, 563560), (1460, 533452), (1544, 504430), (1930, 403544), (2764, 281780), (2920, 266726), (3088, 252215), (3455, 225424), (3860, 201772), (5528, 140890), (5840, 133363), (6910, 112712), (7720, 100886), (11056, 70445), (13820, 56356), (14089, 55280), (15440, 50443), (27640, 28178)]