16213520

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{521}}^1$

素因数の和:923

約数の個数: 40

約数和(自身を含む): 37865880

約数和(自身を除く): 21652360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 521, 778, 1042, 1556, 1945, 2084, 2605, 3112, 3890, 4168, 5210, 6224, 7780, 8336, 10420, 15560, 20840, 31120, 41680, 202669, 405338, 810676, 1013345, 1621352, 2026690, 3242704, 4053380, 8106760, 16213520]

約数ペア:

[(1, 16213520), (2, 8106760), (4, 4053380), (5, 3242704), (8, 2026690), (10, 1621352), (16, 1013345), (20, 810676), (40, 405338), (80, 202669), (389, 41680), (521, 31120), (778, 20840), (1042, 15560), (1556, 10420), (1945, 8336), (2084, 7780), (2605, 6224), (3112, 5210), (3890, 4168)]