380964978

素因数分解:

$2^1\times 3^3\times {\mathrm{97}}^1\times {\mathrm{257}}^1\times {\mathrm{283}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 861678720

約数和(自身を除く): 480713742

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 97, 194, 257, 283, 291, 514, 566, 582, 771, 849, 873, 1542, 1698, 1746, 2313, 2547, 2619, 4626, 5094, 5238, 6939, 7641, 13878, 15282, 24929, 27451, 49858, 54902, 72731, 74787, 82353, 145462, 149574, 164706, 218193, 224361, 247059, 436386, 448722, 494118, 654579, 673083, 741177, 1309158, 1346166, 1482354, 1963737, 3927474, 7054907, 14109814, 21164721, 42329442, 63494163, 126988326, 190482489, 380964978]

約数ペア:

[(1, 380964978), (2, 190482489), (3, 126988326), (6, 63494163), (9, 42329442), (18, 21164721), (27, 14109814), (54, 7054907), (97, 3927474), (194, 1963737), (257, 1482354), (283, 1346166), (291, 1309158), (514, 741177), (566, 673083), (582, 654579), (771, 494118), (849, 448722), (873, 436386), (1542, 247059), (1698, 224361), (1746, 218193), (2313, 164706), (2547, 149574), (2619, 145462), (4626, 82353), (5094, 74787), (5238, 72731), (6939, 54902), (7641, 49858), (13878, 27451), (15282, 24929)]