20303600

素因数分解:

$2^4\times 5^2\times {\mathrm{193}}^1\times {\mathrm{263}}^1$

素因数の和:474

約数の個数: 60

約数和(自身を含む): 49218576

約数和(自身を除く): 28914976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 193, 200, 263, 386, 400, 526, 772, 965, 1052, 1315, 1544, 1930, 2104, 2630, 3088, 3860, 4208, 4825, 5260, 6575, 7720, 9650, 10520, 13150, 15440, 19300, 21040, 26300, 38600, 50759, 52600, 77200, 101518, 105200, 203036, 253795, 406072, 507590, 812144, 1015180, 1268975, 2030360, 2537950, 4060720, 5075900, 10151800, 20303600]

約数ペア:

[(1, 20303600), (2, 10151800), (4, 5075900), (5, 4060720), (8, 2537950), (10, 2030360), (16, 1268975), (20, 1015180), (25, 812144), (40, 507590), (50, 406072), (80, 253795), (100, 203036), (193, 105200), (200, 101518), (263, 77200), (386, 52600), (400, 50759), (526, 38600), (772, 26300), (965, 21040), (1052, 19300), (1315, 15440), (1544, 13150), (1930, 10520), (2104, 9650), (2630, 7720), (3088, 6575), (3860, 5260), (4208, 4825)]