639847558

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1\times {\mathrm{3631}}^1$

素因数の和:3988

約数の個数: 32

約数和(自身を含む): 1127605248

約数和(自身を除く): 487757690

約数列:

[1, 2, 7, 14, 41, 82, 287, 307, 574, 614, 2149, 3631, 4298, 7262, 12587, 25174, 25417, 50834, 88109, 148871, 176218, 297742, 1042097, 1114717, 2084194, 2229434, 7803019, 15606038, 45703397, 91406794, 319923779, 639847558]

約数ペア:

[(1, 639847558), (2, 319923779), (7, 91406794), (14, 45703397), (41, 15606038), (82, 7803019), (287, 2229434), (307, 2084194), (574, 1114717), (614, 1042097), (2149, 297742), (3631, 176218), (4298, 148871), (7262, 88109), (12587, 50834), (25174, 25417)]