257420384

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{618799}}^1$

素因数の和:618822

約数の個数: 24

約数和(自身を含む): 545781600

約数和(自身を除く): 288361216

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 618799, 1237598, 2475196, 4950392, 8044387, 9900784, 16088774, 19801568, 32177548, 64355096, 128710192, 257420384]

約数ペア:

[(1, 257420384), (2, 128710192), (4, 64355096), (8, 32177548), (13, 19801568), (16, 16088774), (26, 9900784), (32, 8044387), (52, 4950392), (104, 2475196), (208, 1237598), (416, 618799)]