20123896

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{179}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 23421704

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 47, 52, 92, 94, 104, 179, 184, 188, 299, 358, 376, 598, 611, 716, 1081, 1196, 1222, 1432, 2162, 2327, 2392, 2444, 4117, 4324, 4654, 4888, 8234, 8413, 8648, 9308, 14053, 16468, 16826, 18616, 28106, 32936, 33652, 53521, 56212, 67304, 107042, 109369, 112424, 193499, 214084, 218738, 386998, 428168, 437476, 773996, 874952, 1547992, 2515487, 5030974, 10061948, 20123896]

約数ペア:

[(1, 20123896), (2, 10061948), (4, 5030974), (8, 2515487), (13, 1547992), (23, 874952), (26, 773996), (46, 437476), (47, 428168), (52, 386998), (92, 218738), (94, 214084), (104, 193499), (179, 112424), (184, 109369), (188, 107042), (299, 67304), (358, 56212), (376, 53521), (598, 33652), (611, 32936), (716, 28106), (1081, 18616), (1196, 16826), (1222, 16468), (1432, 14053), (2162, 9308), (2327, 8648), (2392, 8413), (2444, 8234), (4117, 4888), (4324, 4654)]