25657128

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:332

約数の個数: 128

約数和(自身を含む): 82944000

約数和(自身を除く): 57286872

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 71, 72, 84, 108, 126, 142, 168, 189, 213, 216, 239, 252, 284, 378, 426, 478, 497, 504, 568, 639, 717, 756, 852, 956, 994, 1278, 1434, 1491, 1512, 1673, 1704, 1912, 1917, 1988, 2151, 2556, 2868, 2982, 3346, 3834, 3976, 4302, 4473, 5019, 5112, 5736, 5964, 6453, 6692, 7668, 8604, 8946, 10038, 11928, 12906, 13384, 13419, 15057, 15336, 16969, 17208, 17892, 20076, 25812, 26838, 30114, 33938, 35784, 40152, 45171, 50907, 51624, 53676, 60228, 67876, 90342, 101814, 107352, 118783, 120456, 135752, 152721, 180684, 203628, 237566, 305442, 356349, 361368, 407256, 458163, 475132, 610884, 712698, 916326, 950264, 1069047, 1221768, 1425396, 1832652, 2138094, 2850792, 3207141, 3665304, 4276188, 6414282, 8552376, 12828564, 25657128]

約数ペア:

[(1, 25657128), (2, 12828564), (3, 8552376), (4, 6414282), (6, 4276188), (7, 3665304), (8, 3207141), (9, 2850792), (12, 2138094), (14, 1832652), (18, 1425396), (21, 1221768), (24, 1069047), (27, 950264), (28, 916326), (36, 712698), (42, 610884), (54, 475132), (56, 458163), (63, 407256), (71, 361368), (72, 356349), (84, 305442), (108, 237566), (126, 203628), (142, 180684), (168, 152721), (189, 135752), (213, 120456), (216, 118783), (239, 107352), (252, 101814), (284, 90342), (378, 67876), (426, 60228), (478, 53676), (497, 51624), (504, 50907), (568, 45171), (639, 40152), (717, 35784), (756, 33938), (852, 30114), (956, 26838), (994, 25812), (1278, 20076), (1434, 17892), (1491, 17208), (1512, 16969), (1673, 15336), (1704, 15057), (1912, 13419), (1917, 13384), (1988, 12906), (2151, 11928), (2556, 10038), (2868, 8946), (2982, 8604), (3346, 7668), (3834, 6692), (3976, 6453), (4302, 5964), (4473, 5736), (5019, 5112)]