219278540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{843379}}^1$

素因数の和:843401

約数の個数: 24

約数和(自身を含む): 495907440

約数和(自身を除く): 276628900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 843379, 1686758, 3373516, 4216895, 8433790, 10963927, 16867580, 21927854, 43855708, 54819635, 109639270, 219278540]

約数ペア:

[(1, 219278540), (2, 109639270), (4, 54819635), (5, 43855708), (10, 21927854), (13, 16867580), (20, 10963927), (26, 8433790), (52, 4216895), (65, 3373516), (130, 1686758), (260, 843379)]