388670740

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{234139}}^1$

素因数の和:234231

約数の個数: 24

約数和(自身を含む): 826045920

約数和(自身を除く): 437375180

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 234139, 468278, 936556, 1170695, 2341390, 4682780, 19433537, 38867074, 77734148, 97167685, 194335370, 388670740]

約数ペア:

[(1, 388670740), (2, 194335370), (4, 97167685), (5, 77734148), (10, 38867074), (20, 19433537), (83, 4682780), (166, 2341390), (332, 1170695), (415, 936556), (830, 468278), (1660, 234139)]