20886703340

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3221}}^1\times {\mathrm{3643}}^1$

素因数の和:6962

約数の個数: 48

約数和(自身を含む): 44380859040

約数和(自身を除く): 23494155700

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 3221, 3643, 6442, 7286, 12884, 14572, 16105, 18215, 32210, 36430, 64420, 72860, 286669, 324227, 573338, 648454, 1146676, 1296908, 1433345, 1621135, 2866690, 3242270, 5733380, 6484540, 11734103, 23468206, 46936412, 58670515, 117341030, 234682060, 1044335167, 2088670334, 4177340668, 5221675835, 10443351670, 20886703340]

約数ペア:

[(1, 20886703340), (2, 10443351670), (4, 5221675835), (5, 4177340668), (10, 2088670334), (20, 1044335167), (89, 234682060), (178, 117341030), (356, 58670515), (445, 46936412), (890, 23468206), (1780, 11734103), (3221, 6484540), (3643, 5733380), (6442, 3242270), (7286, 2866690), (12884, 1621135), (14572, 1433345), (16105, 1296908), (18215, 1146676), (32210, 648454), (36430, 573338), (64420, 324227), (72860, 286669)]