12891880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{16963}}^1$

素因数の和:16993

約数の個数: 32

約数和(自身を含む): 30535200

約数和(自身を除く): 17643320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 16963, 33926, 67852, 84815, 135704, 169630, 322297, 339260, 644594, 678520, 1289188, 1611485, 2578376, 3222970, 6445940, 12891880]

約数ペア:

[(1, 12891880), (2, 6445940), (4, 3222970), (5, 2578376), (8, 1611485), (10, 1289188), (19, 678520), (20, 644594), (38, 339260), (40, 322297), (76, 169630), (95, 135704), (152, 84815), (190, 67852), (380, 33926), (760, 16963)]