20281569372

素因数分解:

$2^2\times 3^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{189881}}^1$

素因数の和:189960

約数の個数: 96

約数和(自身を含む): 56144309760

約数和(自身を除く): 35862740388

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 43, 46, 54, 69, 86, 92, 108, 129, 138, 172, 207, 258, 276, 387, 414, 516, 621, 774, 828, 989, 1161, 1242, 1548, 1978, 2322, 2484, 2967, 3956, 4644, 5934, 8901, 11868, 17802, 26703, 35604, 53406, 106812, 189881, 379762, 569643, 759524, 1139286, 1708929, 2278572, 3417858, 4367263, 5126787, 6835716, 8164883, 8734526, 10253574, 13101789, 16329766, 17469052, 20507148, 24494649, 26203578, 32659532, 39305367, 48989298, 52407156, 73483947, 78610734, 97978596, 117916101, 146967894, 157221468, 187792309, 220451841, 235832202, 293935788, 375584618, 440903682, 471664404, 563376927, 751169236, 881807364, 1126753854, 1690130781, 2253507708, 3380261562, 5070392343, 6760523124, 10140784686, 20281569372]

約数ペア:

[(1, 20281569372), (2, 10140784686), (3, 6760523124), (4, 5070392343), (6, 3380261562), (9, 2253507708), (12, 1690130781), (18, 1126753854), (23, 881807364), (27, 751169236), (36, 563376927), (43, 471664404), (46, 440903682), (54, 375584618), (69, 293935788), (86, 235832202), (92, 220451841), (108, 187792309), (129, 157221468), (138, 146967894), (172, 117916101), (207, 97978596), (258, 78610734), (276, 73483947), (387, 52407156), (414, 48989298), (516, 39305367), (621, 32659532), (774, 26203578), (828, 24494649), (989, 20507148), (1161, 17469052), (1242, 16329766), (1548, 13101789), (1978, 10253574), (2322, 8734526), (2484, 8164883), (2967, 6835716), (3956, 5126787), (4644, 4367263), (5934, 3417858), (8901, 2278572), (11868, 1708929), (17802, 1139286), (26703, 759524), (35604, 569643), (53406, 379762), (106812, 189881)]