247489918

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1\times {\mathrm{229}}^1$

素因数の和:652

約数の個数: 32

約数和(自身を含む): 405488160

約数和(自身を除く): 157998242

約数列:

[1, 2, 13, 26, 197, 211, 229, 394, 422, 458, 2561, 2743, 2977, 5122, 5486, 5954, 41567, 45113, 48319, 83134, 90226, 96638, 540371, 586469, 628147, 1080742, 1172938, 1256294, 9518843, 19037686, 123744959, 247489918]

約数ペア:

[(1, 247489918), (2, 123744959), (13, 19037686), (26, 9518843), (197, 1256294), (211, 1172938), (229, 1080742), (394, 628147), (422, 586469), (458, 540371), (2561, 96638), (2743, 90226), (2977, 83134), (5122, 48319), (5486, 45113), (5954, 41567)]