28121760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{331}}^1$

素因数の和:411

約数の個数: 144

約数和(自身を含む): 97886880

約数和(自身を除く): 69765120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 59, 60, 72, 80, 90, 96, 118, 120, 144, 160, 177, 180, 236, 240, 288, 295, 331, 354, 360, 472, 480, 531, 590, 662, 708, 720, 885, 944, 993, 1062, 1180, 1324, 1416, 1440, 1655, 1770, 1888, 1986, 2124, 2360, 2648, 2655, 2832, 2979, 3310, 3540, 3972, 4248, 4720, 4965, 5296, 5310, 5664, 5958, 6620, 7080, 7944, 8496, 9440, 9930, 10592, 10620, 11916, 13240, 14160, 14895, 15888, 16992, 19529, 19860, 21240, 23832, 26480, 28320, 29790, 31776, 39058, 39720, 42480, 47664, 52960, 58587, 59580, 78116, 79440, 84960, 95328, 97645, 117174, 119160, 156232, 158880, 175761, 195290, 234348, 238320, 292935, 312464, 351522, 390580, 468696, 476640, 585870, 624928, 703044, 781160, 878805, 937392, 1171740, 1406088, 1562320, 1757610, 1874784, 2343480, 2812176, 3124640, 3515220, 4686960, 5624352, 7030440, 9373920, 14060880, 28121760]

約数ペア:

[(1, 28121760), (2, 14060880), (3, 9373920), (4, 7030440), (5, 5624352), (6, 4686960), (8, 3515220), (9, 3124640), (10, 2812176), (12, 2343480), (15, 1874784), (16, 1757610), (18, 1562320), (20, 1406088), (24, 1171740), (30, 937392), (32, 878805), (36, 781160), (40, 703044), (45, 624928), (48, 585870), (59, 476640), (60, 468696), (72, 390580), (80, 351522), (90, 312464), (96, 292935), (118, 238320), (120, 234348), (144, 195290), (160, 175761), (177, 158880), (180, 156232), (236, 119160), (240, 117174), (288, 97645), (295, 95328), (331, 84960), (354, 79440), (360, 78116), (472, 59580), (480, 58587), (531, 52960), (590, 47664), (662, 42480), (708, 39720), (720, 39058), (885, 31776), (944, 29790), (993, 28320), (1062, 26480), (1180, 23832), (1324, 21240), (1416, 19860), (1440, 19529), (1655, 16992), (1770, 15888), (1888, 14895), (1986, 14160), (2124, 13240), (2360, 11916), (2648, 10620), (2655, 10592), (2832, 9930), (2979, 9440), (3310, 8496), (3540, 7944), (3972, 7080), (4248, 6620), (4720, 5958), (4965, 5664), (5296, 5310)]