18286740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5347}}^1$

素因数の和:5381

約数の個数: 72

約数和(自身を含む): 58400160

約数和(自身を除く): 40113420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 5347, 10694, 16041, 21388, 26735, 32082, 48123, 53470, 64164, 80205, 96246, 101593, 106940, 160410, 192492, 203186, 240615, 304779, 320820, 406372, 481230, 507965, 609558, 914337, 962460, 1015930, 1219116, 1523895, 1828674, 2031860, 3047790, 3657348, 4571685, 6095580, 9143370, 18286740]

約数ペア:

[(1, 18286740), (2, 9143370), (3, 6095580), (4, 4571685), (5, 3657348), (6, 3047790), (9, 2031860), (10, 1828674), (12, 1523895), (15, 1219116), (18, 1015930), (19, 962460), (20, 914337), (30, 609558), (36, 507965), (38, 481230), (45, 406372), (57, 320820), (60, 304779), (76, 240615), (90, 203186), (95, 192492), (114, 160410), (171, 106940), (180, 101593), (190, 96246), (228, 80205), (285, 64164), (342, 53470), (380, 48123), (570, 32082), (684, 26735), (855, 21388), (1140, 16041), (1710, 10694), (3420, 5347)]