393184420

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{99793}}^1$

素因数の和:99999

約数の個数: 24

約数和(自身を含む): 829886904

約数和(自身を除く): 436702484

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 99793, 199586, 399172, 498965, 997930, 1995860, 19659221, 39318442, 78636884, 98296105, 196592210, 393184420]

約数ペア:

[(1, 393184420), (2, 196592210), (4, 98296105), (5, 78636884), (10, 39318442), (20, 19659221), (197, 1995860), (394, 997930), (788, 498965), (985, 399172), (1970, 199586), (3940, 99793)]