98917640

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{12553}}^1$

素因数の和:12761

約数の個数: 32

約数和(自身を含む): 223712280

約数和(自身を除く): 124794640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 12553, 25106, 50212, 62765, 100424, 125530, 251060, 502120, 2472941, 4945882, 9891764, 12364705, 19783528, 24729410, 49458820, 98917640]

約数ペア:

[(1, 98917640), (2, 49458820), (4, 24729410), (5, 19783528), (8, 12364705), (10, 9891764), (20, 4945882), (40, 2472941), (197, 502120), (394, 251060), (788, 125530), (985, 100424), (1576, 62765), (1970, 50212), (3940, 25106), (7880, 12553)]