80921360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:265

約数の個数: 160

約数和(自身を含む): 224985600

約数和(自身を除く): 144064240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 23, 26, 34, 40, 46, 52, 65, 68, 80, 85, 92, 104, 115, 130, 136, 170, 184, 199, 208, 221, 230, 260, 272, 299, 340, 368, 391, 398, 442, 460, 520, 598, 680, 782, 796, 884, 920, 995, 1040, 1105, 1196, 1360, 1495, 1564, 1592, 1768, 1840, 1955, 1990, 2210, 2392, 2587, 2990, 3128, 3184, 3383, 3536, 3910, 3980, 4420, 4577, 4784, 5083, 5174, 5980, 6256, 6766, 7820, 7960, 8840, 9154, 10166, 10348, 11960, 12935, 13532, 15640, 15920, 16915, 17680, 18308, 20332, 20696, 22885, 23920, 25415, 25870, 27064, 31280, 33830, 36616, 40664, 41392, 43979, 45770, 50830, 51740, 54128, 59501, 67660, 73232, 77809, 81328, 87958, 91540, 101660, 103480, 119002, 135320, 155618, 175916, 183080, 203320, 206960, 219895, 238004, 270640, 297505, 311236, 351832, 366160, 389045, 406640, 439790, 476008, 595010, 622472, 703664, 778090, 879580, 952016, 1011517, 1190020, 1244944, 1556180, 1759160, 2023034, 2380040, 3112360, 3518320, 4046068, 4760080, 5057585, 6224720, 8092136, 10115170, 16184272, 20230340, 40460680, 80921360]

約数ペア:

[(1, 80921360), (2, 40460680), (4, 20230340), (5, 16184272), (8, 10115170), (10, 8092136), (13, 6224720), (16, 5057585), (17, 4760080), (20, 4046068), (23, 3518320), (26, 3112360), (34, 2380040), (40, 2023034), (46, 1759160), (52, 1556180), (65, 1244944), (68, 1190020), (80, 1011517), (85, 952016), (92, 879580), (104, 778090), (115, 703664), (130, 622472), (136, 595010), (170, 476008), (184, 439790), (199, 406640), (208, 389045), (221, 366160), (230, 351832), (260, 311236), (272, 297505), (299, 270640), (340, 238004), (368, 219895), (391, 206960), (398, 203320), (442, 183080), (460, 175916), (520, 155618), (598, 135320), (680, 119002), (782, 103480), (796, 101660), (884, 91540), (920, 87958), (995, 81328), (1040, 77809), (1105, 73232), (1196, 67660), (1360, 59501), (1495, 54128), (1564, 51740), (1592, 50830), (1768, 45770), (1840, 43979), (1955, 41392), (1990, 40664), (2210, 36616), (2392, 33830), (2587, 31280), (2990, 27064), (3128, 25870), (3184, 25415), (3383, 23920), (3536, 22885), (3910, 20696), (3980, 20332), (4420, 18308), (4577, 17680), (4784, 16915), (5083, 15920), (5174, 15640), (5980, 13532), (6256, 12935), (6766, 11960), (7820, 10348), (7960, 10166), (8840, 9154)]