20456576

素因数分解:

$2^7\times 7^1\times {\mathrm{17}}^2\times {\mathrm{79}}^1$

素因数の和:134

約数の個数: 96

約数和(自身を含む): 50102400

約数和(自身を除く): 29645824

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 79, 112, 119, 128, 136, 158, 224, 238, 272, 289, 316, 448, 476, 544, 553, 578, 632, 896, 952, 1088, 1106, 1156, 1264, 1343, 1904, 2023, 2176, 2212, 2312, 2528, 2686, 3808, 4046, 4424, 4624, 5056, 5372, 7616, 8092, 8848, 9248, 9401, 10112, 10744, 15232, 16184, 17696, 18496, 18802, 21488, 22831, 32368, 35392, 36992, 37604, 42976, 45662, 64736, 70784, 75208, 85952, 91324, 129472, 150416, 159817, 171904, 182648, 258944, 300832, 319634, 365296, 601664, 639268, 730592, 1203328, 1278536, 1461184, 2557072, 2922368, 5114144, 10228288, 20456576]

約数ペア:

[(1, 20456576), (2, 10228288), (4, 5114144), (7, 2922368), (8, 2557072), (14, 1461184), (16, 1278536), (17, 1203328), (28, 730592), (32, 639268), (34, 601664), (56, 365296), (64, 319634), (68, 300832), (79, 258944), (112, 182648), (119, 171904), (128, 159817), (136, 150416), (158, 129472), (224, 91324), (238, 85952), (272, 75208), (289, 70784), (316, 64736), (448, 45662), (476, 42976), (544, 37604), (553, 36992), (578, 35392), (632, 32368), (896, 22831), (952, 21488), (1088, 18802), (1106, 18496), (1156, 17696), (1264, 16184), (1343, 15232), (1904, 10744), (2023, 10112), (2176, 9401), (2212, 9248), (2312, 8848), (2528, 8092), (2686, 7616), (3808, 5372), (4046, 5056), (4424, 4624)]