1021565140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{4519}}^1$

素因数の和:4744

約数の個数: 48

約数和(自身を含む): 2186956800

約数和(自身を除く): 1165391660

約数列:

[1, 2, 4, 5, 10, 20, 89, 127, 178, 254, 356, 445, 508, 635, 890, 1270, 1780, 2540, 4519, 9038, 11303, 18076, 22595, 22606, 45190, 45212, 56515, 90380, 113030, 226060, 402191, 573913, 804382, 1147826, 1608764, 2010955, 2295652, 2869565, 4021910, 5739130, 8043820, 11478260, 51078257, 102156514, 204313028, 255391285, 510782570, 1021565140]

約数ペア:

[(1, 1021565140), (2, 510782570), (4, 255391285), (5, 204313028), (10, 102156514), (20, 51078257), (89, 11478260), (127, 8043820), (178, 5739130), (254, 4021910), (356, 2869565), (445, 2295652), (508, 2010955), (635, 1608764), (890, 1147826), (1270, 804382), (1780, 573913), (2540, 402191), (4519, 226060), (9038, 113030), (11303, 90380), (18076, 56515), (22595, 45212), (22606, 45190)]