386399440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{2749}}^1$

素因数の和:3020

約数の個数: 80

約数和(自身を含む): 1031184000

約数和(自身を除く): 644784560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 251, 280, 502, 560, 1004, 1255, 1757, 2008, 2510, 2749, 3514, 4016, 5020, 5498, 7028, 8785, 10040, 10996, 13745, 14056, 17570, 19243, 20080, 21992, 27490, 28112, 35140, 38486, 43984, 54980, 70280, 76972, 96215, 109960, 140560, 153944, 192430, 219920, 307888, 384860, 689999, 769720, 1379998, 1539440, 2759996, 3449995, 4829993, 5519992, 6899990, 9659986, 11039984, 13799980, 19319972, 24149965, 27599960, 38639944, 48299930, 55199920, 77279888, 96599860, 193199720, 386399440]

約数ペア:

[(1, 386399440), (2, 193199720), (4, 96599860), (5, 77279888), (7, 55199920), (8, 48299930), (10, 38639944), (14, 27599960), (16, 24149965), (20, 19319972), (28, 13799980), (35, 11039984), (40, 9659986), (56, 6899990), (70, 5519992), (80, 4829993), (112, 3449995), (140, 2759996), (251, 1539440), (280, 1379998), (502, 769720), (560, 689999), (1004, 384860), (1255, 307888), (1757, 219920), (2008, 192430), (2510, 153944), (2749, 140560), (3514, 109960), (4016, 96215), (5020, 76972), (5498, 70280), (7028, 54980), (8785, 43984), (10040, 38486), (10996, 35140), (13745, 28112), (14056, 27490), (17570, 21992), (19243, 20080)]