87804560

素因数分解:

$2^4\times 5^1\times {\mathrm{1097557}}^1$

素因数の和:1097570

約数の個数: 20

約数和(自身を含む): 204145788

約数和(自身を除く): 116341228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1097557, 2195114, 4390228, 5487785, 8780456, 10975570, 17560912, 21951140, 43902280, 87804560]

約数ペア:

[(1, 87804560), (2, 43902280), (4, 21951140), (5, 17560912), (8, 10975570), (10, 8780456), (16, 5487785), (20, 4390228), (40, 2195114), (80, 1097557)]