38778920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 92672640

約数和(自身を除く): 53893720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 61, 92, 115, 122, 184, 230, 244, 305, 460, 488, 610, 691, 920, 1220, 1382, 1403, 2440, 2764, 2806, 3455, 5528, 5612, 6910, 7015, 11224, 13820, 14030, 15893, 27640, 28060, 31786, 42151, 56120, 63572, 79465, 84302, 127144, 158930, 168604, 210755, 317860, 337208, 421510, 635720, 843020, 969473, 1686040, 1938946, 3877892, 4847365, 7755784, 9694730, 19389460, 38778920]

約数ペア:

[(1, 38778920), (2, 19389460), (4, 9694730), (5, 7755784), (8, 4847365), (10, 3877892), (20, 1938946), (23, 1686040), (40, 969473), (46, 843020), (61, 635720), (92, 421510), (115, 337208), (122, 317860), (184, 210755), (230, 168604), (244, 158930), (305, 127144), (460, 84302), (488, 79465), (610, 63572), (691, 56120), (920, 42151), (1220, 31786), (1382, 28060), (1403, 27640), (2440, 15893), (2764, 14030), (2806, 13820), (3455, 11224), (5528, 7015), (5612, 6910)]