661061760

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2477}}^1$

素因数の和:2638

約数の個数: 128

約数和(自身を含む): 2123150400

約数和(自身を除く): 1462088640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 139, 160, 192, 240, 278, 320, 384, 417, 480, 556, 640, 695, 834, 960, 1112, 1390, 1668, 1920, 2085, 2224, 2477, 2780, 3336, 4170, 4448, 4954, 5560, 6672, 7431, 8340, 8896, 9908, 11120, 12385, 13344, 14862, 16680, 17792, 19816, 22240, 24770, 26688, 29724, 33360, 37155, 39632, 44480, 49540, 53376, 59448, 66720, 74310, 79264, 88960, 99080, 118896, 133440, 148620, 158528, 198160, 237792, 266880, 297240, 317056, 344303, 396320, 475584, 594480, 688606, 792640, 951168, 1032909, 1188960, 1377212, 1585280, 1721515, 2065818, 2377920, 2754424, 3443030, 4131636, 4755840, 5164545, 5508848, 6886060, 8263272, 10329090, 11017696, 13772120, 16526544, 20658180, 22035392, 27544240, 33053088, 41316360, 44070784, 55088480, 66106176, 82632720, 110176960, 132212352, 165265440, 220353920, 330530880, 661061760]

約数ペア:

[(1, 661061760), (2, 330530880), (3, 220353920), (4, 165265440), (5, 132212352), (6, 110176960), (8, 82632720), (10, 66106176), (12, 55088480), (15, 44070784), (16, 41316360), (20, 33053088), (24, 27544240), (30, 22035392), (32, 20658180), (40, 16526544), (48, 13772120), (60, 11017696), (64, 10329090), (80, 8263272), (96, 6886060), (120, 5508848), (128, 5164545), (139, 4755840), (160, 4131636), (192, 3443030), (240, 2754424), (278, 2377920), (320, 2065818), (384, 1721515), (417, 1585280), (480, 1377212), (556, 1188960), (640, 1032909), (695, 951168), (834, 792640), (960, 688606), (1112, 594480), (1390, 475584), (1668, 396320), (1920, 344303), (2085, 317056), (2224, 297240), (2477, 266880), (2780, 237792), (3336, 198160), (4170, 158528), (4448, 148620), (4954, 133440), (5560, 118896), (6672, 99080), (7431, 88960), (8340, 79264), (8896, 74310), (9908, 66720), (11120, 59448), (12385, 53376), (13344, 49540), (14862, 44480), (16680, 39632), (17792, 37155), (19816, 33360), (22240, 29724), (24770, 26688)]