207715840

素因数分解:

$2^9\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1979}}^1$

素因数の和:2043

約数の個数: 80

約数和(自身を含む): 510436080

約数和(自身を除く): 302720240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 512, 640, 656, 820, 1280, 1312, 1640, 1979, 2560, 2624, 3280, 3958, 5248, 6560, 7916, 9895, 10496, 13120, 15832, 19790, 20992, 26240, 31664, 39580, 52480, 63328, 79160, 81139, 104960, 126656, 158320, 162278, 253312, 316640, 324556, 405695, 506624, 633280, 649112, 811390, 1013248, 1266560, 1298224, 1622780, 2533120, 2596448, 3245560, 5066240, 5192896, 6491120, 10385792, 12982240, 20771584, 25964480, 41543168, 51928960, 103857920, 207715840]

約数ペア:

[(1, 207715840), (2, 103857920), (4, 51928960), (5, 41543168), (8, 25964480), (10, 20771584), (16, 12982240), (20, 10385792), (32, 6491120), (40, 5192896), (41, 5066240), (64, 3245560), (80, 2596448), (82, 2533120), (128, 1622780), (160, 1298224), (164, 1266560), (205, 1013248), (256, 811390), (320, 649112), (328, 633280), (410, 506624), (512, 405695), (640, 324556), (656, 316640), (820, 253312), (1280, 162278), (1312, 158320), (1640, 126656), (1979, 104960), (2560, 81139), (2624, 79160), (3280, 63328), (3958, 52480), (5248, 39580), (6560, 31664), (7916, 26240), (9895, 20992), (10496, 19790), (13120, 15832)]