279774628

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{2053}}^1$

素因数の和:2252

約数の個数: 48

約数和(自身を含む): 581561344

約数和(自身を除く): 301786716

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 157, 217, 314, 434, 628, 868, 1099, 2053, 2198, 4106, 4396, 4867, 8212, 9734, 14371, 19468, 28742, 34069, 57484, 63643, 68138, 127286, 136276, 254572, 322321, 445501, 644642, 891002, 1289284, 1782004, 2256247, 4512494, 9024988, 9991951, 19983902, 39967804, 69943657, 139887314, 279774628]

約数ペア:

[(1, 279774628), (2, 139887314), (4, 69943657), (7, 39967804), (14, 19983902), (28, 9991951), (31, 9024988), (62, 4512494), (124, 2256247), (157, 1782004), (217, 1289284), (314, 891002), (434, 644642), (628, 445501), (868, 322321), (1099, 254572), (2053, 136276), (2198, 127286), (4106, 68138), (4396, 63643), (4867, 57484), (8212, 34069), (9734, 28742), (14371, 19468)]