180888940

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1\times {\mathrm{673}}^1$

素因数の和:922

約数の個数: 48

約数和(自身を含む): 387253440

約数和(自身を除く): 206364500

約数列:

[1, 2, 4, 5, 10, 20, 89, 151, 178, 302, 356, 445, 604, 673, 755, 890, 1346, 1510, 1780, 2692, 3020, 3365, 6730, 13439, 13460, 26878, 53756, 59897, 67195, 101623, 119794, 134390, 203246, 239588, 268780, 299485, 406492, 508115, 598970, 1016230, 1197940, 2032460, 9044447, 18088894, 36177788, 45222235, 90444470, 180888940]

約数ペア:

[(1, 180888940), (2, 90444470), (4, 45222235), (5, 36177788), (10, 18088894), (20, 9044447), (89, 2032460), (151, 1197940), (178, 1016230), (302, 598970), (356, 508115), (445, 406492), (604, 299485), (673, 268780), (755, 239588), (890, 203246), (1346, 134390), (1510, 119794), (1780, 101623), (2692, 67195), (3020, 59897), (3365, 53756), (6730, 26878), (13439, 13460)]