20540416

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{1543}}^1$

素因数の和:1576

約数の個数: 44

約数和(自身を含む): 44247952

約数和(自身を除く): 23707536

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1024, 1543, 1664, 3086, 3328, 6172, 6656, 12344, 13312, 20059, 24688, 40118, 49376, 80236, 98752, 160472, 197504, 320944, 395008, 641888, 790016, 1283776, 1580032, 2567552, 5135104, 10270208, 20540416]

約数ペア:

[(1, 20540416), (2, 10270208), (4, 5135104), (8, 2567552), (13, 1580032), (16, 1283776), (26, 790016), (32, 641888), (52, 395008), (64, 320944), (104, 197504), (128, 160472), (208, 98752), (256, 80236), (416, 49376), (512, 40118), (832, 24688), (1024, 20059), (1543, 13312), (1664, 12344), (3086, 6656), (3328, 6172)]