15780380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10247}}^1$

素因数の和:10274

約数の個数: 48

約数和(自身を含む): 41319936

約数和(自身を除く): 25539556

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 10247, 20494, 40988, 51235, 71729, 102470, 112717, 143458, 204940, 225434, 286916, 358645, 450868, 563585, 717290, 789019, 1127170, 1434580, 1578038, 2254340, 3156076, 3945095, 7890190, 15780380]

約数ペア:

[(1, 15780380), (2, 7890190), (4, 3945095), (5, 3156076), (7, 2254340), (10, 1578038), (11, 1434580), (14, 1127170), (20, 789019), (22, 717290), (28, 563585), (35, 450868), (44, 358645), (55, 286916), (70, 225434), (77, 204940), (110, 143458), (140, 112717), (154, 102470), (220, 71729), (308, 51235), (385, 40988), (770, 20494), (1540, 10247)]