209989715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{36299}}^1$

素因数の和:36406

約数の個数: 16

約数和(自身を含む): 274428000

約数和(自身を除く): 64438285

約数列:

[1, 5, 13, 65, 89, 445, 1157, 5785, 36299, 181495, 471887, 2359435, 3230611, 16153055, 41997943, 209989715]

約数ペア:

[(1, 209989715), (5, 41997943), (13, 16153055), (65, 3230611), (89, 2359435), (445, 471887), (1157, 181495), (5785, 36299)]