397957872

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{719}}^1\times {\mathrm{887}}^1$

素因数の和:1630

約数の個数: 80

約数和(自身を含む): 1109928960

約数和(自身を除く): 711971088

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 719, 887, 1438, 1774, 2157, 2661, 2876, 3548, 4314, 5322, 5752, 7096, 8628, 9347, 10644, 11504, 11531, 14192, 17256, 18694, 21288, 23062, 28041, 34512, 34593, 37388, 42576, 46124, 56082, 69186, 74776, 92248, 112164, 138372, 149552, 184496, 224328, 276744, 448656, 553488, 637753, 1275506, 1913259, 2551012, 3826518, 5102024, 7653036, 8290789, 10204048, 15306072, 16581578, 24872367, 30612144, 33163156, 49744734, 66326312, 99489468, 132652624, 198978936, 397957872]

約数ペア:

[(1, 397957872), (2, 198978936), (3, 132652624), (4, 99489468), (6, 66326312), (8, 49744734), (12, 33163156), (13, 30612144), (16, 24872367), (24, 16581578), (26, 15306072), (39, 10204048), (48, 8290789), (52, 7653036), (78, 5102024), (104, 3826518), (156, 2551012), (208, 1913259), (312, 1275506), (624, 637753), (719, 553488), (887, 448656), (1438, 276744), (1774, 224328), (2157, 184496), (2661, 149552), (2876, 138372), (3548, 112164), (4314, 92248), (5322, 74776), (5752, 69186), (7096, 56082), (8628, 46124), (9347, 42576), (10644, 37388), (11504, 34593), (11531, 34512), (14192, 28041), (17256, 23062), (18694, 21288)]