18815692792

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{26171}}^1$

素因数の和:26444

約数の個数: 64

約数和(自身を含む): 39396188160

約数和(自身を除く): 20580495368

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 223, 248, 403, 446, 806, 892, 1612, 1784, 2899, 3224, 5798, 6913, 11596, 13826, 23192, 26171, 27652, 52342, 55304, 89869, 104684, 179738, 209368, 340223, 359476, 680446, 718952, 811301, 1360892, 1622602, 2721784, 3245204, 5836133, 6490408, 10546913, 11672266, 21093826, 23344532, 42187652, 46689064, 75869729, 84375304, 151739458, 180920123, 303478916, 361840246, 606957832, 723680492, 1447360984, 2351961599, 4703923198, 9407846396, 18815692792]

約数ペア:

[(1, 18815692792), (2, 9407846396), (4, 4703923198), (8, 2351961599), (13, 1447360984), (26, 723680492), (31, 606957832), (52, 361840246), (62, 303478916), (104, 180920123), (124, 151739458), (223, 84375304), (248, 75869729), (403, 46689064), (446, 42187652), (806, 23344532), (892, 21093826), (1612, 11672266), (1784, 10546913), (2899, 6490408), (3224, 5836133), (5798, 3245204), (6913, 2721784), (11596, 1622602), (13826, 1360892), (23192, 811301), (26171, 718952), (27652, 680446), (52342, 359476), (55304, 340223), (89869, 209368), (104684, 179738)]