205431840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{431}}^1$

素因数の和:783

約数の個数: 144

約数和(自身を含む): 704785536

約数和(自身を除く): 499353696

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 331, 360, 431, 480, 662, 720, 862, 993, 1293, 1324, 1440, 1655, 1724, 1986, 2155, 2586, 2648, 2979, 3310, 3448, 3879, 3972, 4310, 4965, 5172, 5296, 5958, 6465, 6620, 6896, 7758, 7944, 8620, 9930, 10344, 10592, 11916, 12930, 13240, 13792, 14895, 15516, 15888, 17240, 19395, 19860, 20688, 23832, 25860, 26480, 29790, 31032, 31776, 34480, 38790, 39720, 41376, 47664, 51720, 52960, 59580, 62064, 68960, 77580, 79440, 95328, 103440, 119160, 124128, 142661, 155160, 158880, 206880, 238320, 285322, 310320, 427983, 476640, 570644, 620640, 713305, 855966, 1141288, 1283949, 1426610, 1711932, 2139915, 2282576, 2567898, 2853220, 3423864, 4279830, 4565152, 5135796, 5706440, 6419745, 6847728, 8559660, 10271592, 11412880, 12839490, 13695456, 17119320, 20543184, 22825760, 25678980, 34238640, 41086368, 51357960, 68477280, 102715920, 205431840]

約数ペア:

[(1, 205431840), (2, 102715920), (3, 68477280), (4, 51357960), (5, 41086368), (6, 34238640), (8, 25678980), (9, 22825760), (10, 20543184), (12, 17119320), (15, 13695456), (16, 12839490), (18, 11412880), (20, 10271592), (24, 8559660), (30, 6847728), (32, 6419745), (36, 5706440), (40, 5135796), (45, 4565152), (48, 4279830), (60, 3423864), (72, 2853220), (80, 2567898), (90, 2282576), (96, 2139915), (120, 1711932), (144, 1426610), (160, 1283949), (180, 1141288), (240, 855966), (288, 713305), (331, 620640), (360, 570644), (431, 476640), (480, 427983), (662, 310320), (720, 285322), (862, 238320), (993, 206880), (1293, 158880), (1324, 155160), (1440, 142661), (1655, 124128), (1724, 119160), (1986, 103440), (2155, 95328), (2586, 79440), (2648, 77580), (2979, 68960), (3310, 62064), (3448, 59580), (3879, 52960), (3972, 51720), (4310, 47664), (4965, 41376), (5172, 39720), (5296, 38790), (5958, 34480), (6465, 31776), (6620, 31032), (6896, 29790), (7758, 26480), (7944, 25860), (8620, 23832), (9930, 20688), (10344, 19860), (10592, 19395), (11916, 17240), (12930, 15888), (13240, 15516), (13792, 14895)]