215558252

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2729}}^1$

素因数の和:2791

約数の個数: 72

約数和(自身を含む): 487992960

約数和(自身を除く): 272434708

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 49, 52, 62, 91, 98, 124, 182, 196, 217, 364, 403, 434, 637, 806, 868, 1274, 1519, 1612, 2548, 2729, 2821, 3038, 5458, 5642, 6076, 10916, 11284, 19103, 19747, 35477, 38206, 39494, 70954, 76412, 78988, 84599, 133721, 141908, 169198, 248339, 267442, 338396, 496678, 534884, 592193, 993356, 1099787, 1184386, 1738373, 2199574, 2368772, 3476746, 4145351, 4399148, 6953492, 7698509, 8290702, 15397018, 16581404, 30794036, 53889563, 107779126, 215558252]

約数ペア:

[(1, 215558252), (2, 107779126), (4, 53889563), (7, 30794036), (13, 16581404), (14, 15397018), (26, 8290702), (28, 7698509), (31, 6953492), (49, 4399148), (52, 4145351), (62, 3476746), (91, 2368772), (98, 2199574), (124, 1738373), (182, 1184386), (196, 1099787), (217, 993356), (364, 592193), (403, 534884), (434, 496678), (637, 338396), (806, 267442), (868, 248339), (1274, 169198), (1519, 141908), (1612, 133721), (2548, 84599), (2729, 78988), (2821, 76412), (3038, 70954), (5458, 39494), (5642, 38206), (6076, 35477), (10916, 19747), (11284, 19103)]