958779620

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{257}}^1\times {\mathrm{1811}}^1$

素因数の和:2180

約数の個数: 48

約数和(自身を含む): 2042022528

約数和(自身を除く): 1083242908

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 257, 412, 514, 515, 1028, 1030, 1285, 1811, 2060, 2570, 3622, 5140, 7244, 9055, 18110, 26471, 36220, 52942, 105884, 132355, 186533, 264710, 373066, 465427, 529420, 746132, 930854, 932665, 1861708, 1865330, 2327135, 3730660, 4654270, 9308540, 47938981, 95877962, 191755924, 239694905, 479389810, 958779620]

約数ペア:

[(1, 958779620), (2, 479389810), (4, 239694905), (5, 191755924), (10, 95877962), (20, 47938981), (103, 9308540), (206, 4654270), (257, 3730660), (412, 2327135), (514, 1865330), (515, 1861708), (1028, 932665), (1030, 930854), (1285, 746132), (1811, 529420), (2060, 465427), (2570, 373066), (3622, 264710), (5140, 186533), (7244, 132355), (9055, 105884), (18110, 52942), (26471, 36220)]