661211824

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^2\times {\mathrm{181}}^1\times {\mathrm{193}}^1$

素因数の和:415

約数の個数: 120

約数和(自身を含む): 1602418272

約数和(自身を除く): 941206448

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 169, 181, 182, 193, 208, 338, 362, 364, 386, 676, 724, 728, 772, 1183, 1267, 1351, 1352, 1448, 1456, 1544, 2353, 2366, 2509, 2534, 2702, 2704, 2896, 3088, 4706, 4732, 5018, 5068, 5404, 9412, 9464, 10036, 10136, 10808, 16471, 17563, 18824, 18928, 20072, 20272, 21616, 30589, 32617, 32942, 34933, 35126, 37648, 40144, 61178, 65234, 65884, 69866, 70252, 122356, 130468, 131768, 139732, 140504, 214123, 228319, 244531, 244712, 260936, 263536, 279464, 281008, 428246, 454129, 456638, 489062, 489424, 521872, 558928, 856492, 908258, 913276, 978124, 1712984, 1816516, 1826552, 1956248, 3178903, 3425968, 3633032, 3653104, 3912496, 5903677, 6357806, 7266064, 11807354, 12715612, 23614708, 25431224, 41325739, 47229416, 50862448, 82651478, 94458832, 165302956, 330605912, 661211824]

約数ペア:

[(1, 661211824), (2, 330605912), (4, 165302956), (7, 94458832), (8, 82651478), (13, 50862448), (14, 47229416), (16, 41325739), (26, 25431224), (28, 23614708), (52, 12715612), (56, 11807354), (91, 7266064), (104, 6357806), (112, 5903677), (169, 3912496), (181, 3653104), (182, 3633032), (193, 3425968), (208, 3178903), (338, 1956248), (362, 1826552), (364, 1816516), (386, 1712984), (676, 978124), (724, 913276), (728, 908258), (772, 856492), (1183, 558928), (1267, 521872), (1351, 489424), (1352, 489062), (1448, 456638), (1456, 454129), (1544, 428246), (2353, 281008), (2366, 279464), (2509, 263536), (2534, 260936), (2702, 244712), (2704, 244531), (2896, 228319), (3088, 214123), (4706, 140504), (4732, 139732), (5018, 131768), (5068, 130468), (5404, 122356), (9412, 70252), (9464, 69866), (10036, 65884), (10136, 65234), (10808, 61178), (16471, 40144), (17563, 37648), (18824, 35126), (18928, 34933), (20072, 32942), (20272, 32617), (21616, 30589)]