28791175

素因数分解:

$5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1237}}^1$

素因数の和:1280

約数の個数: 36

約数和(自身を含む): 43750920

約数和(自身を除く): 14959745

約数列:

[1, 5, 7, 19, 25, 35, 49, 95, 133, 175, 245, 475, 665, 931, 1225, 1237, 3325, 4655, 6185, 8659, 23275, 23503, 30925, 43295, 60613, 117515, 164521, 216475, 303065, 587575, 822605, 1151647, 1515325, 4113025, 5758235, 28791175]

約数ペア:

[(1, 28791175), (5, 5758235), (7, 4113025), (19, 1515325), (25, 1151647), (35, 822605), (49, 587575), (95, 303065), (133, 216475), (175, 164521), (245, 117515), (475, 60613), (665, 43295), (931, 30925), (1225, 23503), (1237, 23275), (3325, 8659), (4655, 6185)]