998231248

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{2687}}^1$

素因数の和:2840

約数の個数: 80

約数和(自身を含む): 2303852544

約数和(自身を除く): 1305621296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 107, 112, 124, 214, 217, 248, 428, 434, 496, 749, 856, 868, 1498, 1712, 1736, 2687, 2996, 3317, 3472, 5374, 5992, 6634, 10748, 11984, 13268, 18809, 21496, 23219, 26536, 37618, 42992, 46438, 53072, 75236, 83297, 92876, 150472, 166594, 185752, 287509, 300944, 333188, 371504, 575018, 583079, 666376, 1150036, 1166158, 1332752, 2012563, 2300072, 2332316, 4025126, 4600144, 4664632, 8050252, 8912779, 9329264, 16100504, 17825558, 32201008, 35651116, 62389453, 71302232, 124778906, 142604464, 249557812, 499115624, 998231248]

約数ペア:

[(1, 998231248), (2, 499115624), (4, 249557812), (7, 142604464), (8, 124778906), (14, 71302232), (16, 62389453), (28, 35651116), (31, 32201008), (56, 17825558), (62, 16100504), (107, 9329264), (112, 8912779), (124, 8050252), (214, 4664632), (217, 4600144), (248, 4025126), (428, 2332316), (434, 2300072), (496, 2012563), (749, 1332752), (856, 1166158), (868, 1150036), (1498, 666376), (1712, 583079), (1736, 575018), (2687, 371504), (2996, 333188), (3317, 300944), (3472, 287509), (5374, 185752), (5992, 166594), (6634, 150472), (10748, 92876), (11984, 83297), (13268, 75236), (18809, 53072), (21496, 46438), (23219, 42992), (26536, 37618)]