249071980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{12959}}^1$

素因数の和:13030

約数の個数: 36

約数和(自身を含む): 540509760

約数和(自身を除く): 291437780

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1922, 3844, 4805, 9610, 12959, 19220, 25918, 51836, 64795, 129590, 259180, 401729, 803458, 1606916, 2008645, 4017290, 8034580, 12453599, 24907198, 49814396, 62267995, 124535990, 249071980]

約数ペア:

[(1, 249071980), (2, 124535990), (4, 62267995), (5, 49814396), (10, 24907198), (20, 12453599), (31, 8034580), (62, 4017290), (124, 2008645), (155, 1606916), (310, 803458), (620, 401729), (961, 259180), (1922, 129590), (3844, 64795), (4805, 51836), (9610, 25918), (12959, 19220)]