208512540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{971}}^1\times {\mathrm{1193}}^1$

素因数の和:2179

約数の個数: 72

約数和(自身を含む): 633670128

約数和(自身を除く): 425157588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 971, 1193, 1942, 2386, 2913, 3579, 3884, 4772, 4855, 5826, 5965, 7158, 8739, 9710, 10737, 11652, 11930, 14316, 14565, 17478, 17895, 19420, 21474, 23860, 29130, 34956, 35790, 42948, 43695, 53685, 58260, 71580, 87390, 107370, 174780, 214740, 1158403, 2316806, 3475209, 4633612, 5792015, 6950418, 10425627, 11584030, 13900836, 17376045, 20851254, 23168060, 34752090, 41702508, 52128135, 69504180, 104256270, 208512540]

約数ペア:

[(1, 208512540), (2, 104256270), (3, 69504180), (4, 52128135), (5, 41702508), (6, 34752090), (9, 23168060), (10, 20851254), (12, 17376045), (15, 13900836), (18, 11584030), (20, 10425627), (30, 6950418), (36, 5792015), (45, 4633612), (60, 3475209), (90, 2316806), (180, 1158403), (971, 214740), (1193, 174780), (1942, 107370), (2386, 87390), (2913, 71580), (3579, 58260), (3884, 53685), (4772, 43695), (4855, 42948), (5826, 35790), (5965, 34956), (7158, 29130), (8739, 23860), (9710, 21474), (10737, 19420), (11652, 17895), (11930, 17478), (14316, 14565)]