78889677040

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2008393}}^1$

素因数の和:2008897

約数の個数: 40

約数和(自身を含む): 183792151728

約数和(自身を除く): 104902474688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1964, 2455, 3928, 4910, 7856, 9820, 19640, 39280, 2008393, 4016786, 8033572, 10041965, 16067144, 20083930, 32134288, 40167860, 80335720, 160671440, 986120963, 1972241926, 3944483852, 4930604815, 7888967704, 9861209630, 15777935408, 19722419260, 39444838520, 78889677040]

約数ペア:

[(1, 78889677040), (2, 39444838520), (4, 19722419260), (5, 15777935408), (8, 9861209630), (10, 7888967704), (16, 4930604815), (20, 3944483852), (40, 1972241926), (80, 986120963), (491, 160671440), (982, 80335720), (1964, 40167860), (2455, 32134288), (3928, 20083930), (4910, 16067144), (7856, 10041965), (9820, 8033572), (19640, 4016786), (39280, 2008393)]