245212604

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{701}}^1$

素因数の和:787

約数の個数: 72

約数和(自身を含む): 546515424

約数和(自身を除く): 301302820

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 182, 217, 364, 403, 434, 701, 806, 868, 961, 1402, 1612, 1922, 2804, 2821, 3844, 4907, 5642, 6727, 9113, 9814, 11284, 12493, 13454, 18226, 19628, 21731, 24986, 26908, 36452, 43462, 49972, 63791, 86924, 87451, 127582, 152117, 174902, 255164, 282503, 304234, 349804, 565006, 608468, 673661, 1130012, 1347322, 1977521, 2694644, 3955042, 4715627, 7910084, 8757593, 9431254, 17515186, 18862508, 35030372, 61303151, 122606302, 245212604]

約数ペア:

[(1, 245212604), (2, 122606302), (4, 61303151), (7, 35030372), (13, 18862508), (14, 17515186), (26, 9431254), (28, 8757593), (31, 7910084), (52, 4715627), (62, 3955042), (91, 2694644), (124, 1977521), (182, 1347322), (217, 1130012), (364, 673661), (403, 608468), (434, 565006), (701, 349804), (806, 304234), (868, 282503), (961, 255164), (1402, 174902), (1612, 152117), (1922, 127582), (2804, 87451), (2821, 86924), (3844, 63791), (4907, 49972), (5642, 43462), (6727, 36452), (9113, 26908), (9814, 24986), (11284, 21731), (12493, 19628), (13454, 18226)]