128128532

素因数分解:

$2^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{4703}}^1$

素因数の和:4860

約数の個数: 36

約数和(自身を含む): 262765440

約数和(自身を除く): 134636908

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 139, 196, 278, 556, 973, 1946, 3892, 4703, 6811, 9406, 13622, 18812, 27244, 32921, 65842, 131684, 230447, 460894, 653717, 921788, 1307434, 2614868, 4576019, 9152038, 18304076, 32032133, 64064266, 128128532]

約数ペア:

[(1, 128128532), (2, 64064266), (4, 32032133), (7, 18304076), (14, 9152038), (28, 4576019), (49, 2614868), (98, 1307434), (139, 921788), (196, 653717), (278, 460894), (556, 230447), (973, 131684), (1946, 65842), (3892, 32921), (4703, 27244), (6811, 18812), (9406, 13622)]