18956820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2273}}^1$

素因数の和:2424

約数の個数: 48

約数和(自身を含む): 53484480

約数和(自身を除く): 34527660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 278, 417, 556, 695, 834, 1390, 1668, 2085, 2273, 2780, 4170, 4546, 6819, 8340, 9092, 11365, 13638, 22730, 27276, 34095, 45460, 68190, 136380, 315947, 631894, 947841, 1263788, 1579735, 1895682, 3159470, 3791364, 4739205, 6318940, 9478410, 18956820]

約数ペア:

[(1, 18956820), (2, 9478410), (3, 6318940), (4, 4739205), (5, 3791364), (6, 3159470), (10, 1895682), (12, 1579735), (15, 1263788), (20, 947841), (30, 631894), (60, 315947), (139, 136380), (278, 68190), (417, 45460), (556, 34095), (695, 27276), (834, 22730), (1390, 13638), (1668, 11365), (2085, 9092), (2273, 8340), (2780, 6819), (4170, 4546)]