318888964840

素因数分解:

$2^3\times 5^1\times {\mathrm{7972224121}}^1$

素因数の和:7972224132

約数の個数: 16

約数和(自身を含む): 717500170980

約数和(自身を除く): 398611206140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7972224121, 15944448242, 31888896484, 39861120605, 63777792968, 79722241210, 159444482420, 318888964840]

約数ペア:

[(1, 318888964840), (2, 159444482420), (4, 79722241210), (5, 63777792968), (8, 39861120605), (10, 31888896484), (20, 15944448242), (40, 7972224121)]