21707070880

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{443}}^1\times {\mathrm{2531}}^1$

素因数の和:3011

約数の個数: 144

約数和(自身を含む): 56518432992

約数和(自身を除く): 34811362112

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 443, 484, 605, 880, 886, 968, 1210, 1760, 1772, 1936, 2215, 2420, 2531, 3544, 3872, 4430, 4840, 4873, 5062, 7088, 8860, 9680, 9746, 10124, 12655, 14176, 17720, 19360, 19492, 20248, 24365, 25310, 27841, 35440, 38984, 40496, 48730, 50620, 53603, 55682, 70880, 77968, 80992, 97460, 101240, 107206, 111364, 139205, 155936, 194920, 202480, 214412, 222728, 268015, 278410, 306251, 389840, 404960, 428824, 445456, 536030, 556820, 612502, 779680, 857648, 890912, 1072060, 1113640, 1121233, 1225004, 1531255, 1715296, 2144120, 2227280, 2242466, 2450008, 3062510, 4288240, 4454560, 4484932, 4900016, 5606165, 6125020, 8576480, 8969864, 9800032, 11212330, 12250040, 12333563, 17939728, 22424660, 24500080, 24667126, 35879456, 44849320, 49000160, 49334252, 61667815, 89698640, 98668504, 123335630, 135669193, 179397280, 197337008, 246671260, 271338386, 394674016, 493342520, 542676772, 678345965, 986685040, 1085353544, 1356691930, 1973370080, 2170707088, 2713383860, 4341414176, 5426767720, 10853535440, 21707070880]

約数ペア:

[(1, 21707070880), (2, 10853535440), (4, 5426767720), (5, 4341414176), (8, 2713383860), (10, 2170707088), (11, 1973370080), (16, 1356691930), (20, 1085353544), (22, 986685040), (32, 678345965), (40, 542676772), (44, 493342520), (55, 394674016), (80, 271338386), (88, 246671260), (110, 197337008), (121, 179397280), (160, 135669193), (176, 123335630), (220, 98668504), (242, 89698640), (352, 61667815), (440, 49334252), (443, 49000160), (484, 44849320), (605, 35879456), (880, 24667126), (886, 24500080), (968, 22424660), (1210, 17939728), (1760, 12333563), (1772, 12250040), (1936, 11212330), (2215, 9800032), (2420, 8969864), (2531, 8576480), (3544, 6125020), (3872, 5606165), (4430, 4900016), (4840, 4484932), (4873, 4454560), (5062, 4288240), (7088, 3062510), (8860, 2450008), (9680, 2242466), (9746, 2227280), (10124, 2144120), (12655, 1715296), (14176, 1531255), (17720, 1225004), (19360, 1121233), (19492, 1113640), (20248, 1072060), (24365, 890912), (25310, 857648), (27841, 779680), (35440, 612502), (38984, 556820), (40496, 536030), (48730, 445456), (50620, 428824), (53603, 404960), (55682, 389840), (70880, 306251), (77968, 278410), (80992, 268015), (97460, 222728), (101240, 214412), (107206, 202480), (111364, 194920), (139205, 155936)]