254370556

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:383

約数の個数: 72

約数和(自身を含む): 521360000

約数和(自身を除く): 266989444

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 139, 199, 209, 242, 278, 398, 418, 484, 556, 796, 836, 1529, 2189, 2299, 2641, 3058, 3781, 4378, 4598, 5282, 6116, 7562, 8756, 9196, 10564, 15124, 16819, 24079, 27661, 29051, 33638, 41591, 48158, 55322, 58102, 67276, 83182, 96316, 110644, 116204, 166364, 304271, 319561, 457501, 525559, 608542, 639122, 915002, 1051118, 1217084, 1278244, 1830004, 2102236, 3346981, 5781149, 6693962, 11562298, 13387924, 23124596, 63592639, 127185278, 254370556]

約数ペア:

[(1, 254370556), (2, 127185278), (4, 63592639), (11, 23124596), (19, 13387924), (22, 11562298), (38, 6693962), (44, 5781149), (76, 3346981), (121, 2102236), (139, 1830004), (199, 1278244), (209, 1217084), (242, 1051118), (278, 915002), (398, 639122), (418, 608542), (484, 525559), (556, 457501), (796, 319561), (836, 304271), (1529, 166364), (2189, 116204), (2299, 110644), (2641, 96316), (3058, 83182), (3781, 67276), (4378, 58102), (4598, 55322), (5282, 48158), (6116, 41591), (7562, 33638), (8756, 29051), (9196, 27661), (10564, 24079), (15124, 16819)]