20199990120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2111}}^1\times {\mathrm{3467}}^1$

素因数の和:5615

約数の個数: 128

約数和(自身を含む): 63282954240

約数和(自身を除く): 43082964120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2111, 2760, 3467, 4222, 6333, 6934, 8444, 10401, 10555, 12666, 13868, 16888, 17335, 20802, 21110, 25332, 27736, 31665, 34670, 41604, 42220, 48553, 50664, 52005, 63330, 69340, 79741, 83208, 84440, 97106, 104010, 126660, 138680, 145659, 159482, 194212, 208020, 239223, 242765, 253320, 291318, 318964, 388424, 398705, 416040, 478446, 485530, 582636, 637928, 728295, 797410, 956892, 971060, 1165272, 1196115, 1456590, 1594820, 1913784, 1942120, 2392230, 2913180, 3189640, 4784460, 5826360, 7318837, 9568920, 14637674, 21956511, 29275348, 36594185, 43913022, 58550696, 73188370, 87826044, 109782555, 146376740, 168333251, 175652088, 219565110, 292753480, 336666502, 439130220, 504999753, 673333004, 841666255, 878260440, 1009999506, 1346666008, 1683332510, 2019999012, 2524998765, 3366665020, 4039998024, 5049997530, 6733330040, 10099995060, 20199990120]

約数ペア:

[(1, 20199990120), (2, 10099995060), (3, 6733330040), (4, 5049997530), (5, 4039998024), (6, 3366665020), (8, 2524998765), (10, 2019999012), (12, 1683332510), (15, 1346666008), (20, 1009999506), (23, 878260440), (24, 841666255), (30, 673333004), (40, 504999753), (46, 439130220), (60, 336666502), (69, 292753480), (92, 219565110), (115, 175652088), (120, 168333251), (138, 146376740), (184, 109782555), (230, 87826044), (276, 73188370), (345, 58550696), (460, 43913022), (552, 36594185), (690, 29275348), (920, 21956511), (1380, 14637674), (2111, 9568920), (2760, 7318837), (3467, 5826360), (4222, 4784460), (6333, 3189640), (6934, 2913180), (8444, 2392230), (10401, 1942120), (10555, 1913784), (12666, 1594820), (13868, 1456590), (16888, 1196115), (17335, 1165272), (20802, 971060), (21110, 956892), (25332, 797410), (27736, 728295), (31665, 637928), (34670, 582636), (41604, 485530), (42220, 478446), (48553, 416040), (50664, 398705), (52005, 388424), (63330, 318964), (69340, 291318), (79741, 253320), (83208, 242765), (84440, 239223), (97106, 208020), (104010, 194212), (126660, 159482), (138680, 145659)]