218657680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{307}}^2$

素因数の和:656

約数の個数: 60

約数和(自身を含む): 527628060

約数和(自身を除く): 308970380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 307, 464, 580, 614, 1160, 1228, 1535, 2320, 2456, 3070, 4912, 6140, 8903, 12280, 17806, 24560, 35612, 44515, 71224, 89030, 94249, 142448, 178060, 188498, 356120, 376996, 471245, 712240, 753992, 942490, 1507984, 1884980, 2733221, 3769960, 5466442, 7539920, 10932884, 13666105, 21865768, 27332210, 43731536, 54664420, 109328840, 218657680]

約数ペア:

[(1, 218657680), (2, 109328840), (4, 54664420), (5, 43731536), (8, 27332210), (10, 21865768), (16, 13666105), (20, 10932884), (29, 7539920), (40, 5466442), (58, 3769960), (80, 2733221), (116, 1884980), (145, 1507984), (232, 942490), (290, 753992), (307, 712240), (464, 471245), (580, 376996), (614, 356120), (1160, 188498), (1228, 178060), (1535, 142448), (2320, 94249), (2456, 89030), (3070, 71224), (4912, 44515), (6140, 35612), (8903, 24560), (12280, 17806)]