28768688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{138311}}^1$

素因数の和:138332

約数の個数: 20

約数和(自身を含む): 60027408

約数和(自身を除く): 31258720

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 138311, 276622, 553244, 1106488, 1798043, 2212976, 3596086, 7192172, 14384344, 28768688]

約数ペア:

[(1, 28768688), (2, 14384344), (4, 7192172), (8, 3596086), (13, 2212976), (16, 1798043), (26, 1106488), (52, 553244), (104, 276622), (208, 138311)]