20281996768

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{251}}^1\times {\mathrm{509}}^1$

素因数の和:833

約数の個数: 144

約数和(自身を含む): 45228501360

約数和(自身を除く): 24946504592

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 41, 44, 82, 88, 121, 164, 176, 242, 251, 328, 352, 451, 484, 502, 509, 656, 902, 968, 1004, 1018, 1312, 1804, 1936, 2008, 2036, 2761, 3608, 3872, 4016, 4072, 4961, 5522, 5599, 7216, 8032, 8144, 9922, 10291, 11044, 11198, 14432, 16288, 19844, 20582, 20869, 22088, 22396, 30371, 39688, 41164, 41738, 44176, 44792, 60742, 61589, 79376, 82328, 83476, 88352, 89584, 113201, 121484, 123178, 127759, 158752, 164656, 166952, 179168, 226402, 229559, 242968, 246356, 255518, 329312, 333904, 452804, 459118, 485936, 492712, 511036, 667808, 905608, 918236, 971872, 985424, 1022072, 1245211, 1405349, 1811216, 1836472, 1970848, 2044144, 2490422, 2525149, 2810698, 3622432, 3672944, 4088288, 4980844, 5050298, 5238119, 5621396, 7345888, 9961688, 10100596, 10476238, 11242792, 15458839, 19923376, 20201192, 20952476, 22485584, 30917678, 39846752, 40402384, 41904952, 44971168, 57619309, 61835356, 80804768, 83809904, 115238618, 123670712, 167619808, 230477236, 247341424, 460954472, 494682848, 633812399, 921908944, 1267624798, 1843817888, 2535249596, 5070499192, 10140998384, 20281996768]

約数ペア:

[(1, 20281996768), (2, 10140998384), (4, 5070499192), (8, 2535249596), (11, 1843817888), (16, 1267624798), (22, 921908944), (32, 633812399), (41, 494682848), (44, 460954472), (82, 247341424), (88, 230477236), (121, 167619808), (164, 123670712), (176, 115238618), (242, 83809904), (251, 80804768), (328, 61835356), (352, 57619309), (451, 44971168), (484, 41904952), (502, 40402384), (509, 39846752), (656, 30917678), (902, 22485584), (968, 20952476), (1004, 20201192), (1018, 19923376), (1312, 15458839), (1804, 11242792), (1936, 10476238), (2008, 10100596), (2036, 9961688), (2761, 7345888), (3608, 5621396), (3872, 5238119), (4016, 5050298), (4072, 4980844), (4961, 4088288), (5522, 3672944), (5599, 3622432), (7216, 2810698), (8032, 2525149), (8144, 2490422), (9922, 2044144), (10291, 1970848), (11044, 1836472), (11198, 1811216), (14432, 1405349), (16288, 1245211), (19844, 1022072), (20582, 985424), (20869, 971872), (22088, 918236), (22396, 905608), (30371, 667808), (39688, 511036), (41164, 492712), (41738, 485936), (44176, 459118), (44792, 452804), (60742, 333904), (61589, 329312), (79376, 255518), (82328, 246356), (83476, 242968), (88352, 229559), (89584, 226402), (113201, 179168), (121484, 166952), (123178, 164656), (127759, 158752)]