51663280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{829}}^1$

素因数の和:902

約数の個数: 80

約数和(自身を含む): 129679200

約数和(自身を除く): 78015920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 164, 190, 205, 304, 328, 380, 410, 656, 760, 779, 820, 829, 1520, 1558, 1640, 1658, 3116, 3280, 3316, 3895, 4145, 6232, 6632, 7790, 8290, 12464, 13264, 15580, 15751, 16580, 31160, 31502, 33160, 33989, 62320, 63004, 66320, 67978, 78755, 126008, 135956, 157510, 169945, 252016, 271912, 315020, 339890, 543824, 630040, 645791, 679780, 1260080, 1291582, 1359560, 2583164, 2719120, 3228955, 5166328, 6457910, 10332656, 12915820, 25831640, 51663280]

約数ペア:

[(1, 51663280), (2, 25831640), (4, 12915820), (5, 10332656), (8, 6457910), (10, 5166328), (16, 3228955), (19, 2719120), (20, 2583164), (38, 1359560), (40, 1291582), (41, 1260080), (76, 679780), (80, 645791), (82, 630040), (95, 543824), (152, 339890), (164, 315020), (190, 271912), (205, 252016), (304, 169945), (328, 157510), (380, 135956), (410, 126008), (656, 78755), (760, 67978), (779, 66320), (820, 63004), (829, 62320), (1520, 33989), (1558, 33160), (1640, 31502), (1658, 31160), (3116, 16580), (3280, 15751), (3316, 15580), (3895, 13264), (4145, 12464), (6232, 8290), (6632, 7790)]