490639214

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1\times {\mathrm{727}}^1$

素因数の和:1100

約数の個数: 32

約数和(自身を含む): 804638016

約数和(自身を除く): 313998802

約数列:

[1, 2, 13, 26, 101, 202, 257, 514, 727, 1313, 1454, 2626, 3341, 6682, 9451, 18902, 25957, 51914, 73427, 146854, 186839, 337441, 373678, 674882, 954551, 1909102, 2428907, 4857814, 18870739, 37741478, 245319607, 490639214]

約数ペア:

[(1, 490639214), (2, 245319607), (13, 37741478), (26, 18870739), (101, 4857814), (202, 2428907), (257, 1909102), (514, 954551), (727, 674882), (1313, 373678), (1454, 337441), (2626, 186839), (3341, 146854), (6682, 73427), (9451, 51914), (18902, 25957)]