388758838

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{227}}^1\times {\mathrm{331}}^1$

素因数の和:772

約数の個数: 32

約数和(自身を含む): 635846400

約数和(自身を除く): 247087562

約数列:

[1, 2, 13, 26, 199, 227, 331, 398, 454, 662, 2587, 2951, 4303, 5174, 5902, 8606, 45173, 65869, 75137, 90346, 131738, 150274, 587249, 856297, 976781, 1174498, 1712594, 1953562, 14952263, 29904526, 194379419, 388758838]

約数ペア:

[(1, 388758838), (2, 194379419), (13, 29904526), (26, 14952263), (199, 1953562), (227, 1712594), (331, 1174498), (398, 976781), (454, 856297), (662, 587249), (2587, 150274), (2951, 131738), (4303, 90346), (5174, 75137), (5902, 65869), (8606, 45173)]