81182110

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{1049}}^1$

素因数の和:1236

約数の個数: 32

約数和(自身を含む): 149688000

約数和(自身を除く): 68505890

約数列:

[1, 2, 5, 10, 71, 109, 142, 218, 355, 545, 710, 1049, 1090, 2098, 5245, 7739, 10490, 15478, 38695, 74479, 77390, 114341, 148958, 228682, 372395, 571705, 744790, 1143410, 8118211, 16236422, 40591055, 81182110]

約数ペア:

[(1, 81182110), (2, 40591055), (5, 16236422), (10, 8118211), (71, 1143410), (109, 744790), (142, 571705), (218, 372395), (355, 228682), (545, 148958), (710, 114341), (1049, 77390), (1090, 74479), (2098, 38695), (5245, 15478), (7739, 10490)]