20161428100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{2039}}^1$

素因数の和:2254

約数の個数: 144

約数和(自身を含む): 48765628800

約数和(自身を除く): 28604200700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 89, 100, 101, 110, 178, 202, 220, 275, 356, 404, 445, 505, 550, 890, 979, 1010, 1100, 1111, 1780, 1958, 2020, 2039, 2222, 2225, 2525, 3916, 4078, 4444, 4450, 4895, 5050, 5555, 8156, 8900, 8989, 9790, 10100, 10195, 11110, 17978, 19580, 20390, 22220, 22429, 24475, 27775, 35956, 40780, 44858, 44945, 48950, 50975, 55550, 89716, 89890, 97900, 98879, 101950, 111100, 112145, 179780, 181471, 197758, 203900, 205939, 224290, 224725, 362942, 395516, 411878, 448580, 449450, 494395, 560725, 725884, 823756, 898900, 907355, 988790, 1029695, 1121450, 1814710, 1977580, 1996181, 2059390, 2242900, 2265329, 2471975, 3629420, 3992362, 4118780, 4530658, 4536775, 4943950, 5148475, 7984724, 9061316, 9073550, 9887900, 9980905, 10296950, 11326645, 18147100, 18328571, 19961810, 20593900, 22653290, 36657142, 39923620, 45306580, 49904525, 56633225, 73314284, 91642855, 99809050, 113266450, 183285710, 199618100, 201614281, 226532900, 366571420, 403228562, 458214275, 806457124, 916428550, 1008071405, 1832857100, 2016142810, 4032285620, 5040357025, 10080714050, 20161428100]

約数ペア:

[(1, 20161428100), (2, 10080714050), (4, 5040357025), (5, 4032285620), (10, 2016142810), (11, 1832857100), (20, 1008071405), (22, 916428550), (25, 806457124), (44, 458214275), (50, 403228562), (55, 366571420), (89, 226532900), (100, 201614281), (101, 199618100), (110, 183285710), (178, 113266450), (202, 99809050), (220, 91642855), (275, 73314284), (356, 56633225), (404, 49904525), (445, 45306580), (505, 39923620), (550, 36657142), (890, 22653290), (979, 20593900), (1010, 19961810), (1100, 18328571), (1111, 18147100), (1780, 11326645), (1958, 10296950), (2020, 9980905), (2039, 9887900), (2222, 9073550), (2225, 9061316), (2525, 7984724), (3916, 5148475), (4078, 4943950), (4444, 4536775), (4450, 4530658), (4895, 4118780), (5050, 3992362), (5555, 3629420), (8156, 2471975), (8900, 2265329), (8989, 2242900), (9790, 2059390), (10100, 1996181), (10195, 1977580), (11110, 1814710), (17978, 1121450), (19580, 1029695), (20390, 988790), (22220, 907355), (22429, 898900), (24475, 823756), (27775, 725884), (35956, 560725), (40780, 494395), (44858, 449450), (44945, 448580), (48950, 411878), (50975, 395516), (55550, 362942), (89716, 224725), (89890, 224290), (97900, 205939), (98879, 203900), (101950, 197758), (111100, 181471), (112145, 179780)]