38618920

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3671}}^1$

素因数の和:3945

約数の個数: 32

約数和(自身を含む): 87246720

約数和(自身を除く): 48627800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 3671, 5260, 7342, 10520, 14684, 18355, 29368, 36710, 73420, 146840, 965473, 1930946, 3861892, 4827365, 7723784, 9654730, 19309460, 38618920]

約数ペア:

[(1, 38618920), (2, 19309460), (4, 9654730), (5, 7723784), (8, 4827365), (10, 3861892), (20, 1930946), (40, 965473), (263, 146840), (526, 73420), (1052, 36710), (1315, 29368), (2104, 18355), (2630, 14684), (3671, 10520), (5260, 7342)]