638863736

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{6449}}^1$

素因数の和:6552

約数の個数: 64

約数和(自身を含む): 1439640000

約数和(自身を除く): 800776264

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 61, 116, 122, 203, 232, 244, 406, 427, 488, 812, 854, 1624, 1708, 1769, 3416, 3538, 6449, 7076, 12383, 12898, 14152, 24766, 25796, 45143, 49532, 51592, 90286, 99064, 180572, 187021, 361144, 374042, 393389, 748084, 786778, 1309147, 1496168, 1573556, 2618294, 2753723, 3147112, 5236588, 5507446, 10473176, 11014892, 11408281, 22029784, 22816562, 45633124, 79857967, 91266248, 159715934, 319431868, 638863736]

約数ペア:

[(1, 638863736), (2, 319431868), (4, 159715934), (7, 91266248), (8, 79857967), (14, 45633124), (28, 22816562), (29, 22029784), (56, 11408281), (58, 11014892), (61, 10473176), (116, 5507446), (122, 5236588), (203, 3147112), (232, 2753723), (244, 2618294), (406, 1573556), (427, 1496168), (488, 1309147), (812, 786778), (854, 748084), (1624, 393389), (1708, 374042), (1769, 361144), (3416, 187021), (3538, 180572), (6449, 99064), (7076, 90286), (12383, 51592), (12898, 49532), (14152, 45143), (24766, 25796)]