996818538260

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{409}}^1\times {\mathrm{618581}}^1$

素因数の和:619196

約数の個数: 48

約数和(自身を含む): 2109092443920

約数和(自身を除く): 1112273905660

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 409, 788, 818, 985, 1636, 1970, 2045, 3940, 4090, 8180, 80573, 161146, 322292, 402865, 618581, 805730, 1237162, 1611460, 2474324, 3092905, 6185810, 12371620, 121860457, 243720914, 252999629, 487441828, 505999258, 609302285, 1011998516, 1218604570, 1264998145, 2437209140, 2529996290, 5059992580, 49840926913, 99681853826, 199363707652, 249204634565, 498409269130, 996818538260]

約数ペア:

[(1, 996818538260), (2, 498409269130), (4, 249204634565), (5, 199363707652), (10, 99681853826), (20, 49840926913), (197, 5059992580), (394, 2529996290), (409, 2437209140), (788, 1264998145), (818, 1218604570), (985, 1011998516), (1636, 609302285), (1970, 505999258), (2045, 487441828), (3940, 252999629), (4090, 243720914), (8180, 121860457), (80573, 12371620), (161146, 6185810), (322292, 3092905), (402865, 2474324), (618581, 1611460), (805730, 1237162)]