166236460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{639371}}^1$

素因数の和:639393

約数の個数: 24

約数和(自身を含む): 375950736

約数和(自身を除く): 209714276

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 639371, 1278742, 2557484, 3196855, 6393710, 8311823, 12787420, 16623646, 33247292, 41559115, 83118230, 166236460]

約数ペア:

[(1, 166236460), (2, 83118230), (4, 41559115), (5, 33247292), (10, 16623646), (13, 12787420), (20, 8311823), (26, 6393710), (52, 3196855), (65, 2557484), (130, 1278742), (260, 639371)]