20389100

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{3847}}^1$

素因数の和:3914

約数の個数: 36

約数和(自身を含む): 45090864

約数和(自身を除く): 24701764

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 212, 265, 530, 1060, 1325, 2650, 3847, 5300, 7694, 15388, 19235, 38470, 76940, 96175, 192350, 203891, 384700, 407782, 815564, 1019455, 2038910, 4077820, 5097275, 10194550, 20389100]

約数ペア:

[(1, 20389100), (2, 10194550), (4, 5097275), (5, 4077820), (10, 2038910), (20, 1019455), (25, 815564), (50, 407782), (53, 384700), (100, 203891), (106, 192350), (212, 96175), (265, 76940), (530, 38470), (1060, 19235), (1325, 15388), (2650, 7694), (3847, 5300)]