81886810

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{8521}}^1$

素因数の和:8590

約数の個数: 24

約数和(自身を含む): 152322228

約数和(自身を除く): 70435418

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 961, 1922, 4805, 8521, 9610, 17042, 42605, 85210, 264151, 528302, 1320755, 2641510, 8188681, 16377362, 40943405, 81886810]

約数ペア:

[(1, 81886810), (2, 40943405), (5, 16377362), (10, 8188681), (31, 2641510), (62, 1320755), (155, 528302), (310, 264151), (961, 85210), (1922, 42605), (4805, 17042), (8521, 9610)]