12919220

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4931}}^1$

素因数の和:5071

約数の個数: 24

約数和(自身を含む): 27343008

約数和(自身を除く): 14423788

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 4931, 9862, 19724, 24655, 49310, 98620, 645961, 1291922, 2583844, 3229805, 6459610, 12919220]

約数ペア:

[(1, 12919220), (2, 6459610), (4, 3229805), (5, 2583844), (10, 1291922), (20, 645961), (131, 98620), (262, 49310), (524, 24655), (655, 19724), (1310, 9862), (2620, 4931)]