164964340

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{433}}^1\times {\mathrm{443}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 356102208

約数和(自身を除く): 191137868

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 433, 443, 860, 866, 886, 1732, 1772, 2165, 2215, 4330, 4430, 8660, 8860, 18619, 19049, 37238, 38098, 74476, 76196, 93095, 95245, 186190, 190490, 191819, 372380, 380980, 383638, 767276, 959095, 1918190, 3836380, 8248217, 16496434, 32992868, 41241085, 82482170, 164964340]

約数ペア:

[(1, 164964340), (2, 82482170), (4, 41241085), (5, 32992868), (10, 16496434), (20, 8248217), (43, 3836380), (86, 1918190), (172, 959095), (215, 767276), (430, 383638), (433, 380980), (443, 372380), (860, 191819), (866, 190490), (886, 186190), (1732, 95245), (1772, 93095), (2165, 76196), (2215, 74476), (4330, 38098), (4430, 37238), (8660, 19049), (8860, 18619)]