20135606440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{277}}^1\times {\mathrm{947}}^1$

素因数の和:1355

約数の個数: 128

約数和(自身を含む): 48386678400

約数和(自身を除く): 28251071960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 101, 152, 190, 202, 277, 380, 404, 505, 554, 760, 808, 947, 1010, 1108, 1385, 1894, 1919, 2020, 2216, 2770, 3788, 3838, 4040, 4735, 5263, 5540, 7576, 7676, 9470, 9595, 10526, 11080, 15352, 17993, 18940, 19190, 21052, 26315, 27977, 35986, 37880, 38380, 42104, 52630, 55954, 71972, 76760, 89965, 95647, 105260, 111908, 139885, 143944, 179930, 191294, 210520, 223816, 262319, 279770, 359860, 382588, 478235, 524638, 531563, 559540, 719720, 765176, 956470, 1049276, 1063126, 1119080, 1311595, 1817293, 1912940, 2098552, 2126252, 2623190, 2657815, 3634586, 3825880, 4252504, 4984061, 5246380, 5315630, 7269172, 9086465, 9968122, 10492760, 10631260, 14538344, 18172930, 19936244, 21262520, 24920305, 26494219, 36345860, 39872488, 49840610, 52988438, 72691720, 99681220, 105976876, 132471095, 199362440, 211953752, 264942190, 503390161, 529884380, 1006780322, 1059768760, 2013560644, 2516950805, 4027121288, 5033901610, 10067803220, 20135606440]

約数ペア:

[(1, 20135606440), (2, 10067803220), (4, 5033901610), (5, 4027121288), (8, 2516950805), (10, 2013560644), (19, 1059768760), (20, 1006780322), (38, 529884380), (40, 503390161), (76, 264942190), (95, 211953752), (101, 199362440), (152, 132471095), (190, 105976876), (202, 99681220), (277, 72691720), (380, 52988438), (404, 49840610), (505, 39872488), (554, 36345860), (760, 26494219), (808, 24920305), (947, 21262520), (1010, 19936244), (1108, 18172930), (1385, 14538344), (1894, 10631260), (1919, 10492760), (2020, 9968122), (2216, 9086465), (2770, 7269172), (3788, 5315630), (3838, 5246380), (4040, 4984061), (4735, 4252504), (5263, 3825880), (5540, 3634586), (7576, 2657815), (7676, 2623190), (9470, 2126252), (9595, 2098552), (10526, 1912940), (11080, 1817293), (15352, 1311595), (17993, 1119080), (18940, 1063126), (19190, 1049276), (21052, 956470), (26315, 765176), (27977, 719720), (35986, 559540), (37880, 531563), (38380, 524638), (42104, 478235), (52630, 382588), (55954, 359860), (71972, 279770), (76760, 262319), (89965, 223816), (95647, 210520), (105260, 191294), (111908, 179930), (139885, 143944)]