63477020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 137592000

約数和(自身を除く): 74114980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 199, 205, 389, 398, 410, 778, 796, 820, 995, 1556, 1945, 1990, 3890, 3980, 7780, 8159, 15949, 16318, 31898, 32636, 40795, 63796, 77411, 79745, 81590, 154822, 159490, 163180, 309644, 318980, 387055, 774110, 1548220, 3173851, 6347702, 12695404, 15869255, 31738510, 63477020]

約数ペア:

[(1, 63477020), (2, 31738510), (4, 15869255), (5, 12695404), (10, 6347702), (20, 3173851), (41, 1548220), (82, 774110), (164, 387055), (199, 318980), (205, 309644), (389, 163180), (398, 159490), (410, 154822), (778, 81590), (796, 79745), (820, 77411), (995, 63796), (1556, 40795), (1945, 32636), (1990, 31898), (3890, 16318), (3980, 15949), (7780, 8159)]