68027220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19891}}^1$

素因数の和:19925

約数の個数: 72

約数和(自身を含む): 217220640

約数和(自身を除く): 149193420

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, 19891, 39782, 59673, 79564, 99455, 119346, 179019, 198910, 238692, 298365, 358038, 377929, 397820, 596730, 716076, 755858, 895095, 1133787, 1193460, 1511716, 1790190, 1889645, 2267574, 3401361, 3580380, 3779290, 4535148, 5668935, 6802722, 7558580, 11337870, 13605444, 17006805, 22675740, 34013610, 68027220]

約数ペア:

[(1, 68027220), (2, 34013610), (3, 22675740), (4, 17006805), (5, 13605444), (6, 11337870), (9, 7558580), (10, 6802722), (12, 5668935), (15, 4535148), (18, 3779290), (19, 3580380), (20, 3401361), (30, 2267574), (36, 1889645), (38, 1790190), (45, 1511716), (57, 1193460), (60, 1133787), (76, 895095), (90, 755858), (95, 716076), (114, 596730), (171, 397820), (180, 377929), (190, 358038), (228, 298365), (285, 238692), (342, 198910), (380, 179019), (570, 119346), (684, 99455), (855, 79564), (1140, 59673), (1710, 39782), (3420, 19891)]