257907636

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{23801}}^1$

素因数の和:23861

約数の個数: 72

約数和(自身を含む): 762425664

約数和(自身を除く): 504518028

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 43, 63, 84, 86, 126, 129, 172, 252, 258, 301, 387, 516, 602, 774, 903, 1204, 1548, 1806, 2709, 3612, 5418, 10836, 23801, 47602, 71403, 95204, 142806, 166607, 214209, 285612, 333214, 428418, 499821, 666428, 856836, 999642, 1023443, 1499463, 1999284, 2046886, 2998926, 3070329, 4093772, 5997852, 6140658, 7164101, 9210987, 12281316, 14328202, 18421974, 21492303, 28656404, 36843948, 42984606, 64476909, 85969212, 128953818, 257907636]

約数ペア:

[(1, 257907636), (2, 128953818), (3, 85969212), (4, 64476909), (6, 42984606), (7, 36843948), (9, 28656404), (12, 21492303), (14, 18421974), (18, 14328202), (21, 12281316), (28, 9210987), (36, 7164101), (42, 6140658), (43, 5997852), (63, 4093772), (84, 3070329), (86, 2998926), (126, 2046886), (129, 1999284), (172, 1499463), (252, 1023443), (258, 999642), (301, 856836), (387, 666428), (516, 499821), (602, 428418), (774, 333214), (903, 285612), (1204, 214209), (1548, 166607), (1806, 142806), (2709, 95204), (3612, 71403), (5418, 47602), (10836, 23801)]