138680960

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19699}}^1$

素因数の和:19729

約数の個数: 64

約数和(自身を含む): 361692000

約数和(自身を除く): 223011040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3520, 7040, 19699, 39398, 78796, 98495, 157592, 196990, 216689, 315184, 393980, 433378, 630368, 787960, 866756, 1083445, 1260736, 1575920, 1733512, 2166890, 2521472, 3151840, 3467024, 4333780, 6303680, 6934048, 8667560, 12607360, 13868096, 17335120, 27736192, 34670240, 69340480, 138680960]

約数ペア:

[(1, 138680960), (2, 69340480), (4, 34670240), (5, 27736192), (8, 17335120), (10, 13868096), (11, 12607360), (16, 8667560), (20, 6934048), (22, 6303680), (32, 4333780), (40, 3467024), (44, 3151840), (55, 2521472), (64, 2166890), (80, 1733512), (88, 1575920), (110, 1260736), (128, 1083445), (160, 866756), (176, 787960), (220, 630368), (320, 433378), (352, 393980), (440, 315184), (640, 216689), (704, 196990), (880, 157592), (1408, 98495), (1760, 78796), (3520, 39398), (7040, 19699)]