12820928848

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{204781}}^1$

素因数の和:204852

約数の個数: 80

約数和(自身を含む): 31284136576

約数和(自身を除く): 18463207728

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 43, 52, 56, 86, 91, 104, 112, 172, 182, 208, 301, 344, 364, 559, 602, 688, 728, 1118, 1204, 1456, 2236, 2408, 3913, 4472, 4816, 7826, 8944, 15652, 31304, 62608, 204781, 409562, 819124, 1433467, 1638248, 2662153, 2866934, 3276496, 5324306, 5733868, 8805583, 10648612, 11467736, 17611166, 18635071, 21297224, 22935472, 35222332, 37270142, 42594448, 61639081, 70444664, 74540284, 114472579, 123278162, 140889328, 149080568, 228945158, 246556324, 298161136, 457890316, 493112648, 801308053, 915780632, 986225296, 1602616106, 1831561264, 3205232212, 6410464424, 12820928848]

約数ペア:

[(1, 12820928848), (2, 6410464424), (4, 3205232212), (7, 1831561264), (8, 1602616106), (13, 986225296), (14, 915780632), (16, 801308053), (26, 493112648), (28, 457890316), (43, 298161136), (52, 246556324), (56, 228945158), (86, 149080568), (91, 140889328), (104, 123278162), (112, 114472579), (172, 74540284), (182, 70444664), (208, 61639081), (301, 42594448), (344, 37270142), (364, 35222332), (559, 22935472), (602, 21297224), (688, 18635071), (728, 17611166), (1118, 11467736), (1204, 10648612), (1456, 8805583), (2236, 5733868), (2408, 5324306), (3913, 3276496), (4472, 2866934), (4816, 2662153), (7826, 1638248), (8944, 1433467), (15652, 819124), (31304, 409562), (62608, 204781)]