21825160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3389}}^1$

素因数の和:3430

約数の個数: 64

約数和(自身を含む): 58579200

約数和(自身を除く): 36754040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 3389, 6440, 6778, 13556, 16945, 23723, 27112, 33890, 47446, 67780, 77947, 94892, 118615, 135560, 155894, 189784, 237230, 311788, 389735, 474460, 545629, 623576, 779470, 948920, 1091258, 1558940, 2182516, 2728145, 3117880, 4365032, 5456290, 10912580, 21825160]

約数ペア:

[(1, 21825160), (2, 10912580), (4, 5456290), (5, 4365032), (7, 3117880), (8, 2728145), (10, 2182516), (14, 1558940), (20, 1091258), (23, 948920), (28, 779470), (35, 623576), (40, 545629), (46, 474460), (56, 389735), (70, 311788), (92, 237230), (115, 189784), (140, 155894), (161, 135560), (184, 118615), (230, 94892), (280, 77947), (322, 67780), (460, 47446), (644, 33890), (805, 27112), (920, 23723), (1288, 16945), (1610, 13556), (3220, 6778), (3389, 6440)]