28145705

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{13183}}^1$

素因数の和:13256

約数の個数: 16

約数和(自身を含む): 39235584

約数和(自身を除く): 11089879

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 13183, 65915, 92281, 461405, 804163, 4020815, 5629141, 28145705]

約数ペア:

[(1, 28145705), (5, 5629141), (7, 4020815), (35, 804163), (61, 461405), (305, 92281), (427, 65915), (2135, 13183)]