19185140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{653}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 43838928

約数和(自身を除く): 24653788

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 226, 260, 452, 565, 653, 1130, 1306, 1469, 2260, 2612, 2938, 3265, 5876, 6530, 7345, 8489, 13060, 14690, 16978, 29380, 33956, 42445, 73789, 84890, 147578, 169780, 295156, 368945, 737890, 959257, 1475780, 1918514, 3837028, 4796285, 9592570, 19185140]

約数ペア:

[(1, 19185140), (2, 9592570), (4, 4796285), (5, 3837028), (10, 1918514), (13, 1475780), (20, 959257), (26, 737890), (52, 368945), (65, 295156), (113, 169780), (130, 147578), (226, 84890), (260, 73789), (452, 42445), (565, 33956), (653, 29380), (1130, 16978), (1306, 14690), (1469, 13060), (2260, 8489), (2612, 7345), (2938, 6530), (3265, 5876)]