12864207980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49477723}}^1$

素因数の和:49477745

約数の個数: 24

約数和(自身を含む): 29092901712

約数和(自身を除く): 16228693732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 49477723, 98955446, 197910892, 247388615, 494777230, 643210399, 989554460, 1286420798, 2572841596, 3216051995, 6432103990, 12864207980]

約数ペア:

[(1, 12864207980), (2, 6432103990), (4, 3216051995), (5, 2572841596), (10, 1286420798), (13, 989554460), (20, 643210399), (26, 494777230), (52, 247388615), (65, 197910892), (130, 98955446), (260, 49477723)]