78815760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1667}}^1$

素因数の和:1880

約数の個数: 80

約数和(自身を含む): 245716416

約数和(自身を除く): 166900656

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 197, 240, 394, 591, 788, 985, 1182, 1576, 1667, 1970, 2364, 2955, 3152, 3334, 3940, 4728, 5001, 5910, 6668, 7880, 8335, 9456, 10002, 11820, 13336, 15760, 16670, 20004, 23640, 25005, 26672, 33340, 40008, 47280, 50010, 66680, 80016, 100020, 133360, 200040, 328399, 400080, 656798, 985197, 1313596, 1641995, 1970394, 2627192, 3283990, 3940788, 4925985, 5254384, 6567980, 7881576, 9851970, 13135960, 15763152, 19703940, 26271920, 39407880, 78815760]

約数ペア:

[(1, 78815760), (2, 39407880), (3, 26271920), (4, 19703940), (5, 15763152), (6, 13135960), (8, 9851970), (10, 7881576), (12, 6567980), (15, 5254384), (16, 4925985), (20, 3940788), (24, 3283990), (30, 2627192), (40, 1970394), (48, 1641995), (60, 1313596), (80, 985197), (120, 656798), (197, 400080), (240, 328399), (394, 200040), (591, 133360), (788, 100020), (985, 80016), (1182, 66680), (1576, 50010), (1667, 47280), (1970, 40008), (2364, 33340), (2955, 26672), (3152, 25005), (3334, 23640), (3940, 20004), (4728, 16670), (5001, 15760), (5910, 13336), (6668, 11820), (7880, 10002), (8335, 9456)]