1277715840

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21467}}^1$

素因数の和:21520

約数の個数: 128

約数和(自身を含む): 4204293120

約数和(自身を除く): 2926577280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 310, 320, 372, 384, 465, 480, 496, 620, 640, 744, 930, 960, 992, 1240, 1488, 1860, 1920, 1984, 2480, 2976, 3720, 3968, 4960, 5952, 7440, 9920, 11904, 14880, 19840, 21467, 29760, 42934, 59520, 64401, 85868, 107335, 128802, 171736, 214670, 257604, 322005, 343472, 429340, 515208, 644010, 665477, 686944, 858680, 1030416, 1288020, 1330954, 1373888, 1717360, 1996431, 2060832, 2576040, 2661908, 2747776, 3327385, 3434720, 3992862, 4121664, 5152080, 5323816, 6654770, 6869440, 7985724, 8243328, 9982155, 10304160, 10647632, 13309540, 13738880, 15971448, 19964310, 20608320, 21295264, 26619080, 31942896, 39928620, 41216640, 42590528, 53238160, 63885792, 79857240, 85181056, 106476320, 127771584, 159714480, 212952640, 255543168, 319428960, 425905280, 638857920, 1277715840]

約数ペア:

[(1, 1277715840), (2, 638857920), (3, 425905280), (4, 319428960), (5, 255543168), (6, 212952640), (8, 159714480), (10, 127771584), (12, 106476320), (15, 85181056), (16, 79857240), (20, 63885792), (24, 53238160), (30, 42590528), (31, 41216640), (32, 39928620), (40, 31942896), (48, 26619080), (60, 21295264), (62, 20608320), (64, 19964310), (80, 15971448), (93, 13738880), (96, 13309540), (120, 10647632), (124, 10304160), (128, 9982155), (155, 8243328), (160, 7985724), (186, 6869440), (192, 6654770), (240, 5323816), (248, 5152080), (310, 4121664), (320, 3992862), (372, 3434720), (384, 3327385), (465, 2747776), (480, 2661908), (496, 2576040), (620, 2060832), (640, 1996431), (744, 1717360), (930, 1373888), (960, 1330954), (992, 1288020), (1240, 1030416), (1488, 858680), (1860, 686944), (1920, 665477), (1984, 644010), (2480, 515208), (2976, 429340), (3720, 343472), (3968, 322005), (4960, 257604), (5952, 214670), (7440, 171736), (9920, 128802), (11904, 107335), (14880, 85868), (19840, 64401), (21467, 59520), (29760, 42934)]