19716540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{347}}^1\times {\mathrm{947}}^1$

素因数の和:1306

約数の個数: 48

約数和(自身を含む): 55423872

約数和(自身を除く): 35707332

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 347, 694, 947, 1041, 1388, 1735, 1894, 2082, 2841, 3470, 3788, 4164, 4735, 5205, 5682, 6940, 9470, 10410, 11364, 14205, 18940, 20820, 28410, 56820, 328609, 657218, 985827, 1314436, 1643045, 1971654, 3286090, 3943308, 4929135, 6572180, 9858270, 19716540]

約数ペア:

[(1, 19716540), (2, 9858270), (3, 6572180), (4, 4929135), (5, 3943308), (6, 3286090), (10, 1971654), (12, 1643045), (15, 1314436), (20, 985827), (30, 657218), (60, 328609), (347, 56820), (694, 28410), (947, 20820), (1041, 18940), (1388, 14205), (1735, 11364), (1894, 10410), (2082, 9470), (2841, 6940), (3470, 5682), (3788, 5205), (4164, 4735)]