243481480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{757}}^1$

素因数の和:839

約数の個数: 128

約数和(自身を含む): 648362880

約数和(自身を除く): 404881400

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 43, 44, 55, 68, 85, 86, 88, 110, 136, 170, 172, 187, 215, 220, 340, 344, 374, 430, 440, 473, 680, 731, 748, 757, 860, 935, 946, 1462, 1496, 1514, 1720, 1870, 1892, 2365, 2924, 3028, 3655, 3740, 3784, 3785, 4730, 5848, 6056, 7310, 7480, 7570, 8041, 8327, 9460, 12869, 14620, 15140, 16082, 16654, 18920, 25738, 29240, 30280, 32164, 32551, 33308, 40205, 41635, 51476, 64328, 64345, 65102, 66616, 80410, 83270, 102952, 128690, 130204, 141559, 160820, 162755, 166540, 257380, 260408, 283118, 321640, 325510, 333080, 358061, 514760, 553367, 566236, 651020, 707795, 716122, 1106734, 1132472, 1302040, 1415590, 1432244, 1790305, 2213468, 2766835, 2831180, 2864488, 3580610, 4426936, 5533670, 5662360, 6087037, 7161220, 11067340, 12174074, 14322440, 22134680, 24348148, 30435185, 48696296, 60870370, 121740740, 243481480]

約数ペア:

[(1, 243481480), (2, 121740740), (4, 60870370), (5, 48696296), (8, 30435185), (10, 24348148), (11, 22134680), (17, 14322440), (20, 12174074), (22, 11067340), (34, 7161220), (40, 6087037), (43, 5662360), (44, 5533670), (55, 4426936), (68, 3580610), (85, 2864488), (86, 2831180), (88, 2766835), (110, 2213468), (136, 1790305), (170, 1432244), (172, 1415590), (187, 1302040), (215, 1132472), (220, 1106734), (340, 716122), (344, 707795), (374, 651020), (430, 566236), (440, 553367), (473, 514760), (680, 358061), (731, 333080), (748, 325510), (757, 321640), (860, 283118), (935, 260408), (946, 257380), (1462, 166540), (1496, 162755), (1514, 160820), (1720, 141559), (1870, 130204), (1892, 128690), (2365, 102952), (2924, 83270), (3028, 80410), (3655, 66616), (3740, 65102), (3784, 64345), (3785, 64328), (4730, 51476), (5848, 41635), (6056, 40205), (7310, 33308), (7480, 32551), (7570, 32164), (8041, 30280), (8327, 29240), (9460, 25738), (12869, 18920), (14620, 16654), (15140, 16082)]