68561072

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{353}}^1$

素因数の和:621

約数の個数: 40

約数和(自身を含む): 136077600

約数和(自身を除く): 67516528

約数列:

[1, 2, 4, 8, 16, 61, 122, 199, 244, 353, 398, 488, 706, 796, 976, 1412, 1592, 2824, 3184, 5648, 12139, 21533, 24278, 43066, 48556, 70247, 86132, 97112, 140494, 172264, 194224, 280988, 344528, 561976, 1123952, 4285067, 8570134, 17140268, 34280536, 68561072]

約数ペア:

[(1, 68561072), (2, 34280536), (4, 17140268), (8, 8570134), (16, 4285067), (61, 1123952), (122, 561976), (199, 344528), (244, 280988), (353, 194224), (398, 172264), (488, 140494), (706, 97112), (796, 86132), (976, 70247), (1412, 48556), (1592, 43066), (2824, 24278), (3184, 21533), (5648, 12139)]