40508890

素因数分解:

$2^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{16139}}^1$

素因数の和:16397

約数の個数: 16

約数和(自身を含む): 73211040

約数和(自身を除く): 32702150

約数列:

[1, 2, 5, 10, 251, 502, 1255, 2510, 16139, 32278, 80695, 161390, 4050889, 8101778, 20254445, 40508890]

約数ペア:

[(1, 40508890), (2, 20254445), (5, 8101778), (10, 4050889), (251, 161390), (502, 80695), (1255, 32278), (2510, 16139)]