315200080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1523}}^1$

素因数の和:1748

約数の個数: 80

約数和(自身を含む): 793699200

約数和(自身を除く): 478499120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 199, 208, 260, 398, 520, 796, 995, 1040, 1523, 1592, 1990, 2587, 3046, 3184, 3980, 5174, 6092, 7615, 7960, 10348, 12184, 12935, 15230, 15920, 19799, 20696, 24368, 25870, 30460, 39598, 41392, 51740, 60920, 79196, 98995, 103480, 121840, 158392, 197990, 206960, 303077, 316784, 395980, 606154, 791960, 1212308, 1515385, 1583920, 2424616, 3030770, 3940001, 4849232, 6061540, 7880002, 12123080, 15760004, 19700005, 24246160, 31520008, 39400010, 63040016, 78800020, 157600040, 315200080]

約数ペア:

[(1, 315200080), (2, 157600040), (4, 78800020), (5, 63040016), (8, 39400010), (10, 31520008), (13, 24246160), (16, 19700005), (20, 15760004), (26, 12123080), (40, 7880002), (52, 6061540), (65, 4849232), (80, 3940001), (104, 3030770), (130, 2424616), (199, 1583920), (208, 1515385), (260, 1212308), (398, 791960), (520, 606154), (796, 395980), (995, 316784), (1040, 303077), (1523, 206960), (1592, 197990), (1990, 158392), (2587, 121840), (3046, 103480), (3184, 98995), (3980, 79196), (5174, 60920), (6092, 51740), (7615, 41392), (7960, 39598), (10348, 30460), (12184, 25870), (12935, 24368), (15230, 20696), (15920, 19799)]