1388927680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{26959}}^1$

素因数の和:27006

約数の個数: 112

約数和(自身を含む): 3944355840

約数和(自身を除く): 2555428160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 140, 160, 161, 184, 224, 230, 280, 320, 322, 368, 448, 460, 560, 644, 736, 805, 920, 1120, 1288, 1472, 1610, 1840, 2240, 2576, 3220, 3680, 5152, 6440, 7360, 10304, 12880, 25760, 26959, 51520, 53918, 107836, 134795, 188713, 215672, 269590, 377426, 431344, 539180, 620057, 754852, 862688, 943565, 1078360, 1240114, 1509704, 1725376, 1887130, 2156720, 2480228, 3019408, 3100285, 3774260, 4313440, 4340399, 4960456, 6038816, 6200570, 7548520, 8626880, 8680798, 9920912, 12077632, 12401140, 15097040, 17361596, 19841824, 21701995, 24802280, 30194080, 34723192, 39683648, 43403990, 49604560, 60388160, 69446384, 86807980, 99209120, 138892768, 173615960, 198418240, 277785536, 347231920, 694463840, 1388927680]

約数ペア:

[(1, 1388927680), (2, 694463840), (4, 347231920), (5, 277785536), (7, 198418240), (8, 173615960), (10, 138892768), (14, 99209120), (16, 86807980), (20, 69446384), (23, 60388160), (28, 49604560), (32, 43403990), (35, 39683648), (40, 34723192), (46, 30194080), (56, 24802280), (64, 21701995), (70, 19841824), (80, 17361596), (92, 15097040), (112, 12401140), (115, 12077632), (140, 9920912), (160, 8680798), (161, 8626880), (184, 7548520), (224, 6200570), (230, 6038816), (280, 4960456), (320, 4340399), (322, 4313440), (368, 3774260), (448, 3100285), (460, 3019408), (560, 2480228), (644, 2156720), (736, 1887130), (805, 1725376), (920, 1509704), (1120, 1240114), (1288, 1078360), (1472, 943565), (1610, 862688), (1840, 754852), (2240, 620057), (2576, 539180), (3220, 431344), (3680, 377426), (5152, 269590), (6440, 215672), (7360, 188713), (10304, 134795), (12880, 107836), (25760, 53918), (26959, 51520)]