71640205

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{271}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 109396224

約数和(自身を除く): 37756019

約数列:

[1, 5, 7, 13, 35, 49, 65, 83, 91, 245, 271, 415, 455, 581, 637, 1079, 1355, 1897, 2905, 3185, 3523, 4067, 5395, 7553, 9485, 13279, 17615, 20335, 22493, 24661, 37765, 52871, 66395, 112465, 123305, 157451, 172627, 264355, 292409, 787255, 863135, 1102157, 1462045, 2046863, 5510785, 10234315, 14328041, 71640205]

約数ペア:

[(1, 71640205), (5, 14328041), (7, 10234315), (13, 5510785), (35, 2046863), (49, 1462045), (65, 1102157), (83, 863135), (91, 787255), (245, 292409), (271, 264355), (415, 172627), (455, 157451), (581, 123305), (637, 112465), (1079, 66395), (1355, 52871), (1897, 37765), (2905, 24661), (3185, 22493), (3523, 20335), (4067, 17615), (5395, 13279), (7553, 9485)]