128851736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{28813}}^1$

素因数の和:28875

約数の個数: 32

約数和(自身を含む): 266241360

約数和(自身を除く): 137389624

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 28813, 57626, 115252, 230504, 374569, 749138, 1238959, 1498276, 2477918, 2996552, 4955836, 9911672, 16106467, 32212934, 64425868, 128851736]

約数ペア:

[(1, 128851736), (2, 64425868), (4, 32212934), (8, 16106467), (13, 9911672), (26, 4955836), (43, 2996552), (52, 2477918), (86, 1498276), (104, 1238959), (172, 749138), (344, 374569), (559, 230504), (1118, 115252), (2236, 57626), (4472, 28813)]