18328540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 40924800

約数和(自身を除く): 22596260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 347, 380, 556, 694, 695, 1388, 1390, 1735, 2641, 2780, 3470, 5282, 6593, 6940, 10564, 13186, 13205, 26372, 26410, 32965, 48233, 52820, 65930, 96466, 131860, 192932, 241165, 482330, 916427, 964660, 1832854, 3665708, 4582135, 9164270, 18328540]

約数ペア:

[(1, 18328540), (2, 9164270), (4, 4582135), (5, 3665708), (10, 1832854), (19, 964660), (20, 916427), (38, 482330), (76, 241165), (95, 192932), (139, 131860), (190, 96466), (278, 65930), (347, 52820), (380, 48233), (556, 32965), (694, 26410), (695, 26372), (1388, 13205), (1390, 13186), (1735, 10564), (2641, 6940), (2780, 6593), (3470, 5282)]