19547920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{521}}^1$

素因数の和:608

約数の個数: 80

約数和(自身を含む): 52818048

約数和(自身を除く): 33270128

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 67, 70, 80, 112, 134, 140, 268, 280, 335, 469, 521, 536, 560, 670, 938, 1042, 1072, 1340, 1876, 2084, 2345, 2605, 2680, 3647, 3752, 4168, 4690, 5210, 5360, 7294, 7504, 8336, 9380, 10420, 14588, 18235, 18760, 20840, 29176, 34907, 36470, 37520, 41680, 58352, 69814, 72940, 139628, 145880, 174535, 244349, 279256, 291760, 349070, 488698, 558512, 698140, 977396, 1221745, 1396280, 1954792, 2443490, 2792560, 3909584, 4886980, 9773960, 19547920]

約数ペア:

[(1, 19547920), (2, 9773960), (4, 4886980), (5, 3909584), (7, 2792560), (8, 2443490), (10, 1954792), (14, 1396280), (16, 1221745), (20, 977396), (28, 698140), (35, 558512), (40, 488698), (56, 349070), (67, 291760), (70, 279256), (80, 244349), (112, 174535), (134, 145880), (140, 139628), (268, 72940), (280, 69814), (335, 58352), (469, 41680), (521, 37520), (536, 36470), (560, 34907), (670, 29176), (938, 20840), (1042, 18760), (1072, 18235), (1340, 14588), (1876, 10420), (2084, 9380), (2345, 8336), (2605, 7504), (2680, 7294), (3647, 5360), (3752, 5210), (4168, 4690)]