25805640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1043

約数の個数: 128

約数和(自身を含む): 91422720

約数和(自身を除く): 65617080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 991, 1085, 1240, 1302, 1736, 1860, 1982, 2170, 2604, 2973, 3255, 3720, 3964, 4340, 4955, 5208, 5946, 6510, 6937, 7928, 8680, 9910, 11892, 13020, 13874, 14865, 19820, 20811, 23784, 26040, 27748, 29730, 30721, 34685, 39640, 41622, 55496, 59460, 61442, 69370, 83244, 92163, 104055, 118920, 122884, 138740, 153605, 166488, 184326, 208110, 215047, 245768, 277480, 307210, 368652, 416220, 430094, 460815, 614420, 645141, 737304, 832440, 860188, 921630, 1075235, 1228840, 1290282, 1720376, 1843260, 2150470, 2580564, 3225705, 3686520, 4300940, 5161128, 6451410, 8601880, 12902820, 25805640]

約数ペア:

[(1, 25805640), (2, 12902820), (3, 8601880), (4, 6451410), (5, 5161128), (6, 4300940), (7, 3686520), (8, 3225705), (10, 2580564), (12, 2150470), (14, 1843260), (15, 1720376), (20, 1290282), (21, 1228840), (24, 1075235), (28, 921630), (30, 860188), (31, 832440), (35, 737304), (40, 645141), (42, 614420), (56, 460815), (60, 430094), (62, 416220), (70, 368652), (84, 307210), (93, 277480), (105, 245768), (120, 215047), (124, 208110), (140, 184326), (155, 166488), (168, 153605), (186, 138740), (210, 122884), (217, 118920), (248, 104055), (280, 92163), (310, 83244), (372, 69370), (420, 61442), (434, 59460), (465, 55496), (620, 41622), (651, 39640), (744, 34685), (840, 30721), (868, 29730), (930, 27748), (991, 26040), (1085, 23784), (1240, 20811), (1302, 19820), (1736, 14865), (1860, 13874), (1982, 13020), (2170, 11892), (2604, 9910), (2973, 8680), (3255, 7928), (3720, 6937), (3964, 6510), (4340, 5946), (4955, 5208)]