9940385

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3121}}^1$

素因数の和:3153

約数の個数: 24

約数和(自身を含む): 14948136

約数和(自身を除く): 5007751

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3121, 3185, 15605, 21847, 40573, 109235, 152929, 202865, 284011, 764645, 1420055, 1988077, 9940385]

約数ペア:

[(1, 9940385), (5, 1988077), (7, 1420055), (13, 764645), (35, 284011), (49, 202865), (65, 152929), (91, 109235), (245, 40573), (455, 21847), (637, 15605), (3121, 3185)]