1900538975

素因数分解:

$5^2\times {\mathrm{59}}^2\times {\mathrm{21839}}^1$

素因数の和:21967

約数の個数: 18

約数和(自身を含む): 2397398640

約数和(自身を除く): 496859665

約数列:

[1, 5, 25, 59, 295, 1475, 3481, 17405, 21839, 87025, 109195, 545975, 1288501, 6442505, 32212525, 76021559, 380107795, 1900538975]

約数ペア:

[(1, 1900538975), (5, 380107795), (25, 76021559), (59, 32212525), (295, 6442505), (1475, 1288501), (3481, 545975), (17405, 109195), (21839, 87025)]