21051291250

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{90059}}^1$

素因数の和:90109

約数の個数: 80

約数和(自身を含む): 45578285280

約数和(自身を除く): 24526994030

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 50, 55, 85, 110, 125, 170, 187, 250, 275, 374, 425, 550, 625, 850, 935, 1250, 1375, 1870, 2125, 2750, 4250, 4675, 6875, 9350, 10625, 13750, 21250, 23375, 46750, 90059, 116875, 180118, 233750, 450295, 900590, 990649, 1531003, 1981298, 2251475, 3062006, 4502950, 4953245, 7655015, 9906490, 11257375, 15310030, 16841033, 22514750, 24766225, 33682066, 38275075, 49532450, 56286875, 76550150, 84205165, 112573750, 123831125, 168410330, 191375375, 247662250, 382750750, 421025825, 619155625, 842051650, 956876875, 1238311250, 1913753750, 2105129125, 4210258250, 10525645625, 21051291250]

約数ペア:

[(1, 21051291250), (2, 10525645625), (5, 4210258250), (10, 2105129125), (11, 1913753750), (17, 1238311250), (22, 956876875), (25, 842051650), (34, 619155625), (50, 421025825), (55, 382750750), (85, 247662250), (110, 191375375), (125, 168410330), (170, 123831125), (187, 112573750), (250, 84205165), (275, 76550150), (374, 56286875), (425, 49532450), (550, 38275075), (625, 33682066), (850, 24766225), (935, 22514750), (1250, 16841033), (1375, 15310030), (1870, 11257375), (2125, 9906490), (2750, 7655015), (4250, 4953245), (4675, 4502950), (6875, 3062006), (9350, 2251475), (10625, 1981298), (13750, 1531003), (21250, 990649), (23375, 900590), (46750, 450295), (90059, 233750), (116875, 180118)]