19389460

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 43247232

約数和(自身を除く): 23857772

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 61, 92, 115, 122, 230, 244, 305, 460, 610, 691, 1220, 1382, 1403, 2764, 2806, 3455, 5612, 6910, 7015, 13820, 14030, 15893, 28060, 31786, 42151, 63572, 79465, 84302, 158930, 168604, 210755, 317860, 421510, 843020, 969473, 1938946, 3877892, 4847365, 9694730, 19389460]

約数ペア:

[(1, 19389460), (2, 9694730), (4, 4847365), (5, 3877892), (10, 1938946), (20, 969473), (23, 843020), (46, 421510), (61, 317860), (92, 210755), (115, 168604), (122, 158930), (230, 84302), (244, 79465), (305, 63572), (460, 42151), (610, 31786), (691, 28060), (1220, 15893), (1382, 14030), (1403, 13820), (2764, 7015), (2806, 6910), (3455, 5612)]